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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><b><font size=2>As filed with the Securities and Exchange Commission on April 27, 2006. </font></b></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Registration No.  333-________</font></b></p> </td> </tr></table>


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<p>&nbsp;</p></div></div><BR>

<p style=' margin-bottom:0pt; margin-top:12pt;text-align:center;'><B><font SIZE=2>SECURITIES AND EXCHANGE COMMISSION</font></B></p>

<p style=' margin-bottom:8pt; margin-top:0pt;text-align:center;'><b><font size=2>Washington, D.C. 20549</font></b></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><b><font size=2>_____________________</font></b></p>

<p style=' margin-bottom:0pt; margin-top:12pt;text-align:center;'><B><font SIZE=2>FORM S-8</font></B></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><B><font SIZE=2>REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933</font></B></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><B><font SIZE=3>ILOG S.A.</font></B></p>

<p style=' margin-bottom:12pt; margin-top:0pt;text-align:center;'><font size=2> (Exact name of registrant as specified in its charter)</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>The Republic of France</font></b></p> </td>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Not Applicable</font></b></p> </td> </tr>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>(State or other jurisdiction</font></p> </td>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>(IRS Employer</font></p> </td> </tr>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>of incorporation or organization)</font></p> </td>
        <td width="318" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>Identification Number)</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>9 rue de Verdun, 94253 Gentilly, France</font></b></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>(Address of Principal Executive Offices)</font></p> </td> </tr>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>ILOG S.A. 1998 Stock Option Plan</font></p>
<p style='margin-left:0pt;text-indent:0in;text-align:center;margin-top:0pt;margin-bottom:0in'><font size=2>ILOG S.A. 2001 Stock Option Plan</font></p>
<p style='margin-left:0pt;text-indent:0in;text-align:center;margin-top:0pt;margin-bottom:0in'><font size=2>ILOG S.A. 2004 Stock Option Plan</font></p>
<p style='margin-left:0pt;text-indent:0in;text-align:center;margin-top:0pt;margin-bottom:0in'><font size=2>Warrants to purchase 364,000 Ordinary Shares</font></p>
<p style='margin-left:0pt;text-indent:0in;text-align:center;margin-top:0pt;margin-bottom:12pt'><font size=2>(Full title of the plan)</font></p> </td> </tr>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td> </tr>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Kim Funk, Esq.</font></b></p> </td>
        <td width="312" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Copies to:</font></b></p> </td> </tr>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Vice President and General Counsel</font></b></p> </td>
        <td width="312" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Scott R. Saks, Esq.</font></b></p> </td> </tr>
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        <td width="324" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><B><font SIZE=2>ILOG S.A.</font></B></p> </td>
        <td width="312" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Paul, Hastings, Janofsky &amp; Walker (Europe) LLP</font></b></p> </td> </tr>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>1080 Linda Vista Avenue</font></b></p> </td>
        <td width="312" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>30 avenue de Messine</font></b></p> </td> </tr>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Mountain View, CA 94043</font></b></p> </td>
        <td width="312" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>75008 Paris, France</font></b></p> </td> </tr>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>650-567-8000</font></b></p> </td>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><b><font size=2>+33 1 42 99 04 50</font></b></p> </td> </tr>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>(Name, address, including zip code, and telephone </font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>number, including area code, of agent for service)</font></p> </td>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:6.0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><B><font SIZE=1>CALCULATION OF REGISTRATION FEE</font></B></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=1>&nbsp;</font></p>


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            <p style='margin-left:0in;text-indent:0pt;text-align:center;margin-top:3.0pt;margin-bottom:3.0pt'><b><font size=1>Title of Securities</font></b><br> <b><font size=1>to be Registered<sup>(1)</sup></font></b></p> </td>
        <td width="72" valign=top style='border-top:double black 2.25pt; border-left:none;border-bottom:none;border-right:solid black 1.0pt;   '>
            <p style='margin-left:0in;text-indent:0pt;text-align:center;margin-top:3.0pt;margin-bottom:3.0pt'><b><font size=1>Amount to be Registered <sup>(2)</sup></font></b></p> </td>
        <td width="126" valign=top style='border-top:double black 2.25pt; border-left:none;border-bottom:none;border-right:solid black 1.0pt;   '>
            <p style='margin-left:0in;text-indent:0pt;text-align:center;margin-top:3.0pt;margin-bottom:3.0pt'><b><font size=1>Proposed Maximum Offering Price Per Share <sup>(3)</sup></font></b></p> </td>
        <td width="138" valign=bottom style='border-top:double black 2.25pt; border-left:none;border-bottom:none;border-right:solid black 1.0pt;   '>
            <p style='margin-left:0in;text-indent:0pt;text-align:center;margin-top:3.0pt;margin-bottom:3.0pt'><b><font size=1>Proposed Maximum</font></b><br> <b><font size=1>Aggregate Offering Price <sup>(3)</sup></font></b></p> </td>
        <td width="138" valign=bottom style='border-top:double black 2.25pt; border-left:none;border-bottom:solid black 1.0pt;border-right:none;   '>
            <p style='margin-left:0in;text-indent:0pt;text-align:center;margin-top:3.0pt;margin-bottom:3.0pt'><b><font size=1>Amount of Registration Fee</font></b></p> </td> </tr>
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        <td width="150" style='border-top:none;border-left:none; border-bottom:double black 2.25pt;border-right:solid black 1.0pt;   '>
            <p style='margin-left:0in;text-indent:0pt;text-align:center;margin-top:3.0pt;margin-bottom:3.0pt'><font size=1>Ordinary Shares, par value &#128;1 per share</font></p> </td>
        <td width="72" style='border-top:solid black 1.0pt;border-left: none;border-bottom:double black 2.25pt;border-right:solid black 1.0pt;  '>
            <p style='margin-left:0in;text-indent:0pt;text-align:center;margin-top:6.0pt;margin-bottom:3.0pt'><font size=1>3,264,000</font></p> </td>
        <td width="126" style='border-top:solid black 1.0pt;border-left: none;border-bottom:double black 2.25pt;border-right:solid black 1.0pt;  '>
            <p style='margin-left:0in;text-indent:16.5pt;text-align:left;margin-top:6.0pt;margin-bottom: 3.0pt'><font size=1>$16.31</font></p> </td>
        <td width="138" style='border-top:solid black 1.0pt;border-left: none;border-bottom:double black 2.25pt;border-right:solid black 1.0pt;  '>
            <p style='margin-left:0in;text-indent:14.25pt;text-align:left;margin-top:3.0pt;margin-bottom: 3.0pt'><font size=1>$53,235,840</font></p> </td>
        <td width="138" style='border-bottom:double black 2.25pt;  '>
            <p style='margin-left:0in;text-indent:16.5pt;text-align:left;margin-top:3.0pt;margin-bottom: 3.0pt'><font size=1>$5,696.24</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=1>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=1>(1) American Depository Receipts evidencing American Depository Shares issuable on deposit of the Ordinary Shares have been registered pursuant to a separate registration statement on Form F-6 (Registration No. 333-6370) filed on January 31, 1997, as amended on August 14, 1998.  Each American Depository Share represents one Ordinary Share. </font><b><font size=1> </font></b></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=1>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=1>(2) Consists of (i) 1,000,000 Ordinary Shares deliverable pursuant to the exercise of stock options granted under the ILOG S.A. 1998 Stock Option Plan; (ii) 1,100,000 Ordinary Shares deliverable pursuant to the exercise of stock options granted under the ILOG S.A. 2001 Stock Option Plan; (iii) 800,000 Ordinary Shares deliverable pursuant to the exercise of stock options granted under the ILOG S.A. 2004 Stock Option Plan;</font></p>

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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>1</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=1>and (iv) 364,000 Ordinary Shares deliverable pursuant to the exercise of warrants granted to the Registrant&#146;s non-executive directors and members of the Registrant&#146;s Technical Advisory Board.  The amount being registered also includes an indeterminate number of Ordinary Shares which may be offered as a result of stock splits, stock dividends and anti-dilution provisions and other terms, in accordance with Rule 416 under the Securities Act of 1933, as amended (the &#147;Securities Act&#148;).</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=1>(3)  Estimated solely for the purpose of computing the amount of the registration fee pursuant to Rule 457(c) and (h) under the Securities Act, based upon the average of the high and low prices per ADS reported on the Nasdaq National Market System on April 24, 2006.</font></p>

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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>2</font></p>

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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><b><font size=2>PART I &#150; INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</font></b></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Item 1.</font></b></p> </td>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Plan Information*</font></b></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Item 2.</font></b></p> </td>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Registrant Information and Employee Plan Annual Information*</font></b></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>*</font></p> </td>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>As permitted by Rule 428 under the Securities Act of 1933, as amended (the &#147;Securities Act&#148;), this Registration Statement omits the information specified in Part I of Form S-8.  The documents containing the information specified in Part I will be delivered to the participants in the plans covered by this Registration Statement as required by Rule 428(b).  These documents and the documents incorporated herein by reference pursuant to Item 3 of Part II of this Registration Statement, taken together, constitute a prospectus that meets the requirements of Section 10(a) of the Securities Act.  Such documents are not being filed with the Securities and Exchange Commission (the &#147;SEC&#148;) as part of this Registration Statement or as prospectuses or prospectus supplements pursuant to Rule 424(b) under the Securities Act.</font></p> </td> </tr></table>


<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:0.5in; text-indent:-0.19in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>3</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><B><font SIZE=2>PART II - INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</font></B></p>

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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Item 3.</font></b></p> </td>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Incorporation of Documents by Reference</font></b></p> </td> </tr></table>

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<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.57in;text-align:left;'><font size=2>The SEC allows us to &#147;incorporate by reference&#148; the information we file with or furnish to them, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is considered to be part of this Registration Statement, and later information that we file with or, to the extent designated therein, furnish with the SEC will automatically update and supersede this information. The documents listed below have been filed with or furnished to the SEC by the Registrant, and are incorporated herein by reference:</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="24" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=4><b>&#149;</b></font></p> </td>
        <td  valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Our Annual Report on Form 20-F for the fiscal year ended June 30, 2005, filed with the SEC on October 4, 2005 (File No. 001-29144); </font></p> </td> </tr></table>


<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:0.25in;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="100%" style='margin-left:0pt;border-collapse:collapse'>
    <tr >
        <td width="24" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="24" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=4><b>&#149;</b></font></p> </td>
        <td  valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Our reports on Form 6-K furnished to the SEC on October 27, 2005, November 3, 2005, January 17, 2006, January 26, 2006 and February 22, 2006 (File No. 001-29144); and</font></p> </td> </tr></table>


<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="100%" style='margin-left:0pt;border-collapse:collapse'>
    <tr >
        <td width="24" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="24" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=4><b>&#149;</b></font></p> </td>
        <td  valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>The description of Ordinary Shares and American Depositary Shares contained in the Registration Statement on Form 8-A, dated February 3, 1997 (File No. 000-29144) and any amendments or reports filed for the purpose of updating such description.</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style='margin-left:0pt;text-indent:0.5in;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>
All documents  subsequently filed by the Registrant  pursuant to Sections 13(a),
13(c),  14 and 15(d) of the  Securities  Exchange Act of 1934 and, to the extent
designated  therein,  certain  reports  on Form 6-K  filed or  furnished  by the
Registrant,  prior to the filing of a  post-effective  amendment  that indicates
that all the Ordinary  Shares and/or American  Depositary  Shares offered hereby
have  been  sold  or  that  deregisters  all  Ordinary  Shares  and/or  American
Depositary Shares then remaining  unsold,  shall be deemed to be incorporated by
reference into, and to be a part of, this  Registration  Statement from the date
of filing  or  furnishing  of those  documents.  Any  statement  contained  in a
document  incorporated or deemed to be incorporated by reference herein shall be
deemed to be modified or superseded for purposes of this Registration  Statement
to the extent that a statement contained herein or in any
other subsequently filed or furnished document that also is or is deemed to be incorporated by reference herein
modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except
as so modified or superseded, to constitute a part of this Registration Statement.
</font></p>



<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="208" style='border-collapse:collapse'>
    <tr >
        <td width="48" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Item 4.</font></b></p> </td>
        <td width="160" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Description of Securities</font></b></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="196" style='border-collapse:collapse'>
    <tr >
        <td width="96" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="100" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Not applicable.</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="301" style='border-collapse:collapse'>
    <tr >
        <td width="48" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Item 5.</font></b></p> </td>
        <td width="253" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Interests of Named Experts and Counsel.</font></b></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.5in;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="196" style='border-collapse:collapse'>
    <tr >
        <td width="96" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="100" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Not applicable.</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><b><font size=2>Item 6.  Indemnification of Directors and Officers.</font></b></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.5in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.5in;text-align:left;'><font size=2>French law prohibits the Registrant from entering into indemnification agreements with its directors and officers providing for limitations on personal liability for damages and other costs and expenses that may be incurred by directors and officers arising out of or related to acts or omissions in such capacity.  French law also prohibits the registrant from providing for limitation of liability of a member of the board of directors. Generally, under French law, directors and officers will not be held personally liable for decisions taken diligently and in the corporate interest of the Registrant.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="480" style='border-collapse:collapse'>
    <tr >
        <td width="48" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="432" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>The Registrant has contracted liability insurance for its directors and officers.  </font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="285" style='border-collapse:collapse'>
    <tr >
        <td width="48" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Item 7.</font></b></p> </td>
        <td width="237" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Exemption from Registration Claimed</font></b></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="196" style='border-collapse:collapse'>
    <tr >
        <td width="96" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="100" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Not applicable.</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font SIZE=2>II-</font><font size=2>1</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font SIZE=1></font><font size=2> </font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<br>
<HR noshade align="center" width="100%" size="2">
<pAGE>


</div>




<div style='width:600;'>



<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><b><font size=2>Item 8.  Exhibits.</font></b></p>

<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:1in; text-indent:-0.5in;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="576" style='margin-left:6.95pt;border-collapse:collapse'>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Exhibits</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>3.1</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Statuts (by-laws), of ILOG S.A., as amended (unofficial English translation).  (Incorporated by reference to Exhibit 1 of the Company&#146;s Annual Report on Form 20-F for the year ended June 30, 2005 (File No. 001-29144).</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.1</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Deposit Agreement, dated as of February 13, 1997 and amended August 13, 1998, between the Registrant, JP Morgan Chase Bank, as depository and the holders of American Depository Shares.  (Incorporated by reference to Exhibit 2.1 of the Company&#146;s Annual Report on Form 20-F for the year ended June 30, 2005 (File No. 001-29144). </font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.2*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>ILOG S.A. 1998 Stock Option Plan</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.3*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>ILOG S.A. 2001 Stock Option Plan</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.4*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>ILOG S.A. 2004 Stock Option Plan</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.5*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on September 21, 1999</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.6*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on September 22, 1999</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.7*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on January 26,2000</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.8*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on October 18, 2000</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.9*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on November 22, 2000</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.10*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on December 22, 2000</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.11*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on December 18, 2000</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.12*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on December 18, 2000</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.13*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on December 22, 2000</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.14*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on December 18, 2001</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.15*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on December 18, 2001</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.16*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on December 20, 2001</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.17*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on December 17, 2002</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.18*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on February 26, 2003</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.19*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on March 10, 2003</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font SIZE=2>II-2</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<br>
<HR noshade align="center" width="100%" size="2">
<pAGE>


</div>




<div style='width:600;'>



<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="576" style='margin-left:6.95pt;border-collapse:collapse'>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.20*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on June 18, 2003</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.21*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on June 19, 2003</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.22*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on December 16, 2003</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.23*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on December 16, 2003</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.24*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on December 17, 2003</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.25*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on November 30, 2004</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.26*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on November 30, 2004</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.27*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on December 1, 2004</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.28*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on November 29, 2005</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.29*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on November 29, 2005</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.30*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on November 30, 2005</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>5.1*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Opinion of Paul, Hastings, Janofsky &amp; Walker (Europe) LLP</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>23.1*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Consent of Ernst &amp; Young Audit</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>23.2</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Consent of Paul, Hastings, Janofsky &amp; Walker (Europe) LLP (contained in Exhibit 5.1)</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>24.1</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Power of Attorney (contained on signature page hereto)</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>* Filed herewith</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="147" style='border-collapse:collapse'>
    <tr >
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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Item 9.</font></b></p> </td>
        <td width="99" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Undertakings</font></b></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>The undersigned Registrant hereby undertakes as follows:</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>(1)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement:</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>


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        <td width="144" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="444" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>(i) to include any prospectus required by Section 10(a)(3) of the Securities Act;</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1.58in;text-align:left;'><font size=2> (ii) to reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in the volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20 percent change in the maximum aggregate offering price set forth in the &#147;Calculation of Registration Fee&#148; table in the effective registration statement;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font SIZE=2>II-3</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1.58in;text-align:left;'><font size=2> (iii) to include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="219" style='border-collapse:collapse'>
    <tr >
        <td width="96" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><i>&nbsp;</i></p> </td>
        <td width="123" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><i><font size=2>provided, however</font></i><font size=2>,</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:0.5in;text-align:left;'><font size=2>(A)</font><font size=1>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font size=2>Paragraphs (1)(i) and (1)(ii) of this section do not apply if the registration statement is on Form S-8, and the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the SEC by the Registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement; and</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:0.5in; text-indent:-0.5in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:0.5in;text-align:left;'><font size=2>(B)</font><font size=1>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font size=2>Paragraphs (1)(i), (1)(ii) and (1)(iii) of this section do not apply if the registration statement is on Form S-3 or Form F-3 and the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the SEC by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:0.5in; text-indent:-0.5in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:0.5in;text-align:left;'><font size=2>(C)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Provided further, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the registration statement is for an offering of asset-backed securities on Form S-1 (&sect; 239.11 of this chapter) or Form S-3 (&sect; 239.13 of this chapter), and the information required to be included in a post-effective amendment is provided pursuant to Item 1100(c) of Regulation AB</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>(2)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial </font><i><font size=2>bona fide</font></i><font size=2> offering thereof.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>(3)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>(4)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If the Registrant is a foreign private issuer, to file a post-effective amendment to the registration statement to include any financial statements required by &sect;210.3-19 of this chapter at the start of any delayed offering or throughout a continuous offering. Financial statements and information otherwise required by Section 10(a)(3) of the Act need not be furnished, provided that the Registrant includes in the prospectus, by means of a post-effective amendment, financial statements required pursuant to this paragraph (a)(4) and other information necessary to ensure that all other information in the prospectus is at least as current as the date of those financial statements. Notwithstanding the foregoing, with respect to registration statements on Form F-3, a post-effective amendment need not be filed to include
financial statements and information required by Section 10(a)(3) of the Act or &sect; 210.3-19 of this chapter if such financial statements and information are contained in periodic reports filed with or furnished to the SEC by the Registrant pursuant to section 13 or section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the Form F-3.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>(5)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>(i) If the registrant is relying on Rule 430B (&sect;230.430B of this chapter):</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:1in;text-align:left;'><font size=2>(A) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) (&sect;230.424(b)(3) of this chapter) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:1in;text-align:left;'><font size=2>(B) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) (&sect;230.424(b)(2), (b)(5), or (b)(7) of this chapter) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) (&sect;230.415(a)(1)(i), (vii), or (x) of this chapter) for the purpose of providing the information required by section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included </font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font SIZE=2>II-4</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
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<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:1in;text-align:left;'><font size=2>in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. </font><i><font size=2>Provided, however</font></i><font size=2>, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or
prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>or</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>(ii) If the registrant is subject to Rule 430C (&sect;230.430C of this chapter), each prospectus filed pursuant to Rule 424(b) as part of a registration statement relating to an offering, other than registration statements relying on Rule 430B or other than prospectuses filed in reliance on Rule 430A (&sect;230.430A of this chapter), shall be deemed to be part of and included in the registration statement as of the date it is first used after effectiveness. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such first use, supersede or modify any statement that was made in the registration
statement or prospectus that was part of the registration statement or made in any such document immediately prior to such date of first use.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>(6)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;That, for the purpose of determining liability of the registrant under the Securities Act to any purchaser in the initial distribution of the securities:</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>The undersigned Registrant undertakes that in a primary offering of securities of the undersigned Registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned Registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>(i) Any preliminary prospectus or prospectus of the undersigned Registrant relating to the offering required to be filed pursuant to Rule 424;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>(ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned Registrant or used or referred to by the undersigned Registrant;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>(iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned Registrant or its securities provided by or on behalf of the undersigned Registrant; and</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>(iv) Any other communication that is an offer in the offering made by the undersigned Registrant to the purchaser.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>The undersigned Registrant hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of the Registrant&#146;s annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan&#146;s annual report pursuant to Section 15(d) of the Securities Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial </font><i><font size=2>bona fide</font></i><font size=2> offering thereof.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1in;text-align:left;'><font size=2>Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the Registrant pursuant to provisions pursuant to which the directors, officers or controlling persons may be indemnified by the registrant or otherwise, the registrant has been advised that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is, </font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font SIZE=2>II-5</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>therefore, unenforceable.  In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.5in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font SIZE=2>II-6</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><B><font SIZE=2>SIGNATURES</font></B></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1.03in;text-align:left;'><font size=2>
Pursuant to the  requirements  of the  Securities  Act of 1933,  the  registrant
certifies  that it has  reasonable  grounds  to  believe  that it meets  all the
requirements  for  filing  on Form S-8 and has  duly  caused  this  registration
statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized,  in the city of Gentilly, the Republic of France on this 27th day of
April, 2006.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="461" style='border-collapse:collapse'>
    <tr >
        <td width="384" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="77" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font SIZE=2>ILOG S.A.</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="608" style='border-collapse:collapse'>
    <tr >
        <td width="384" nowrap valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td  nowrap colspan="5" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>By: <u>/s/ Jerome Arnaud</u></font></p> </td> </tr>
    <tr >
        <td  nowrap colspan="2" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td  nowrap colspan="2" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Jerome Arnaud</font></p> </td>
        <td   colspan="2">
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></td> </tr>
    <tr >
        <td  nowrap colspan="3" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td  nowrap colspan="2" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Chief Financial Officer</font></p> </td>
        <td  width="61">
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></td> </tr>
    <tr>
        <td width="384" ></td>

        <td width="19" ></td>

        <td width="1" ></td>

        <td width="101" ></td>

        <td width="41" ></td>

        <td width="61" ></td> </tr> </table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=1>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font size=2>  </font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1.04in;text-align:left;'><font size=2>
KNOW ALL MEN BY THESE PRESENTS,  that each person whose signature  appears below
hereby  constitutes and appoints  Pierre Haren and Jerome  Arnaud</font><b><font
size=2>  </font></b><font  size=2>and each of them,  jointly and severally,  the
undersigned&#146;s true and lawful  attorneys-in-fact and agents, each with full
power of substitution and resubstitution,  in the undersigned&#146;s name and in
the  capacity  indicated  below,  to  sign  any and  all  amendments  (including
post-effective  amendments)  to this  registration  statement on Form S-8 and to
file  the  same,  with  exhibits  thereto  and  other  documents  in  connection
therewith,  with  the  Securities  and  Exchange  Commission,  granting  to such
attorneys-in-fact  and agents,  and each of them, full power and authority to do
all other acts and things  requisite or necessary to be done, and to execute all
such other documents as they, or any of them, may deem necessary or desirable in
connection with the foregoing,  as fully as the undersigned might or could do in
person, hereby ratifying and confirming all that each of said attorneys-in-fact,
or the undersigned&#146;s  substitute or substitutes, may do or cause to be done
by virtue hereof.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:1.03in;text-align:left;'><font size=2>
Pursuant to the  requirements of the Securities Act of 1933,  this  registration
statement has been signed by the following  persons in the capacities and on the
dates indicated.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table width="600" border="0" cellspacing=0 cellpadding=0 style='border-collapse:collapse'>
    <tr >
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>Signature</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>Title</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>Date</font></p> </td> </tr>
    <tr >
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr >
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><u><font size=2>/s/ Pierre Haren</font></u></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Pierre Haren</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Chairman and Chief Executive Officer</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>(Principal Executive Officer)</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:36.75pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>April 27, 2006</font></p> </td> </tr>
    <tr >
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><u><font size=2>/s/ Jerome Arnaud</font></u></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Jerome Arnaud</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Chief Financial Officer (Principal Financial and Accounting Officer)</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>April 27, 2006</font></p> </td> </tr>
    <tr >
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><u><font size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font></u></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Michel Alard </font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Director</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>&nbsp;</font></p> </td> </tr>
    <tr >
        <td width="218" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><u><font size=2>/s/ Marie-Claude Bernal</font></u></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Marie-Claude Bernal</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Director</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:36.75pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>April 27, 2006</font></p></td> </tr>
    <tr >
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><u><font size=2>/s/ Pascal Brandys</font></u></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Pascal Brandys</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Director</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:38.25pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>April 27, 2006</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font SIZE=2>II-7</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<br>
<HR noshade align="center" width="100%" size="2">
<pAGE>


</div>




<div style='width:600;'>



<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table width="600" border="0" cellspacing=0 cellpadding=0 style='border-collapse:collapse'>
    <tr style='height:58.5pt'>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><u><font size=2>/s/ Marc Fourrier</font></u></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Marc Fourrier</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Director</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:36.75pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>April 27, 2006</font></p> </td> </tr>
    <tr >
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:2.25pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><u><font size=2>/s/ Richard Liebhaber</font></u></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Richard Liebhaber</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Director</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>April 27, 2006</font></p> </td> </tr>
    <tr >
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><u><font size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font></u></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Todd Lowe</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Director </font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:36.75pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>&nbsp;</font></p> </td> </tr>
    <tr >
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt;line-height:normal'><u><font size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font></u></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Pierre-Michel Peugnet</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Director </font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:36.75pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>&nbsp;</font></p> </td> </tr>
    <tr >
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>ILOG, Inc.</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><FONT SIZE="2">By: <U>Kim Funk&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </FONT></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><FONT SIZE="2">Title: <U>Secretary&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </FONT></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Authorized Representative in the United States</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p>
<p style='margin-left:0pt;text-indent:36.75pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>April 27, 2006</font></p>
<p style='margin-left:0pt;text-indent:74.25pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font SIZE=2>II-8</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<br>
<HR noshade align="center" width="100%" size="2">
<pAGE>


</div>




<div style='width:600;'>



<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font SIZE=2>INDEX TO EXHIBITS</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="576" style='margin-left:6.95pt;border-collapse:collapse'>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Exhibits</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>3.1</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Statuts (by-laws), of ILOG S.A., as amended (unofficial English translation).  (Incorporated by reference to Exhibit 1 of the Company&#146;s Annual Report on Form 20-F for the year ended June 30, 2005 (File No. 001-29144).</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.1</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Deposit Agreement, dated as of February 13, 1997 and amended on August 13, 1999, between the Registrant, JP Morgan Chase Bank, as depository and the holders of American Depository Shares. (Incorporated by reference to the Registrant&#146;s Registration Statement on Form F-6 (Registration No. 333-06370) filed on January 31, 1997). </font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.2*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>ILOG S.A. 1998 Stock Option Plan</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.3*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>ILOG S.A. 2001 Stock Option Plan</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.4*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>ILOG S.A. 2004 Stock Option Plan</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.5*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on September 21, 1999 relating to the grants of warrants </font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.6*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on September 22, 1999 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.7*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on January 26,2000</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.8*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on October 18, 2000 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.9*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on November 22, 2000 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.10*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on December 22, 2000</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.11*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on December 18, 2000 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.12*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on December 18, 2000 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.13*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on December 22, 2000</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.14*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on December 18, 2001 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.15*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on December 18, 2001 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.16*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on December 20, 2001</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.17*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on December 17, 2002 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.18*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on February 26, 2003 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.19*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on March 10, 2003</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.20*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on June 18, 2003 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.21*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on June 19, 2003</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<br>
<HR noshade align="center" width="100%" size="2">
<pAGE>


</div>




<div style='width:600;'>



<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="576" style='margin-left:6.95pt;border-collapse:collapse'>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.22*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on December 16, 2003 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.23*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on December 16, 2003 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.24*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on December 17, 2003</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.25*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on November 30, 2004 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.26*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on November 30, 2004 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.27*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on December 1, 2004</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.28*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the ILOG S.A. shareholders on November 29, 2005 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.29*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Resolutions adopted by the Board of Directors of ILOG S.A. on November 29, 2005 relating to the grants of warrants</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>4.30*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Form of Warrant issued on November 30, 2005</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>5.1*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Opinion of Paul, Hastings, Janofsky &amp; Walker (Europe) LLP</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>23.1*</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Consent of Ernst &amp; Young Audit</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>23.2</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Consent of Paul, Hastings, Janofsky &amp; Walker (Europe) LLP (contained in Exhibit 5.1)</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=1>&nbsp;</font></p> </td> </tr>
    <tr style='page-break-inside:avoid'>
        <td width="77" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>24.1</font></p> </td>
        <td width="499" valign=top style='padding:0in 6.95pt 0in 6.95pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:.95pt'><font size=2>Power of Attorney (contained on signature page hereto)</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>*Filed herewith</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


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</body>
</html>
[{"type": "S-8", "sequence": "1", "filename": "ilog-s8.htm", "secsgml_size_bytes": 150920}]
{"company-data": {"conformed-name": "ILOG SA", "cik": "0001031140", "assigned-sic": "7372", "irs-number": "000000000", "fiscal-year-end": "0630"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-133600", "film-number": "06785573"}, "business-address": {"street1": "9 RUE DE VERDUN", "city": "94253 GENTILLY FRANC", "state": "I0", "phone": "0113314908"}, "mail-address": {"street1": "9 RUE DE VERDUN", "street2": "94253 GENTILLY FRANCE"}}
As filed with the Securities and Exchange Commission on April 27, 2006.
Registration No.  333-________
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_____________________
FORM S-8
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
ILOG S.A.
(Exact name of registrant as specified in its charter)
The Republic of France
Not Applicable
(State or other jurisdiction
(IRS Employer
of incorporation or organization)
Identification Number)
9 rue de Verdun, 94253 Gentilly, France
(Address of Principal Executive Offices)
ILOG S.A. 1998 Stock Option Plan
ILOG S.A. 2001 Stock Option Plan
ILOG S.A. 2004 Stock Option Plan
Warrants to purchase 364,000 Ordinary Shares
(Full title of the plan)
Kim Funk, Esq.
Copies to:
Vice President and General Counsel
Scott R. Saks, Esq.
ILOG S.A.
Paul, Hastings, Janofsky & Walker (Europe) LLP
1080 Linda Vista Avenue
30 avenue de Messine
Mountain View, CA 94043
75008 Paris, France
650-567-8000
+33 1 42 99 04 50
(Name, address, including zip code, and telephone
number, including area code, of agent for service)
CALCULATION OF REGISTRATION FEE
Title of Securities
to be Registered
(1)
Amount to be Registered
(2)
Proposed Maximum Offering Price Per Share
(3)
Proposed Maximum
Aggregate Offering Price
(3)
Amount of Registration Fee
Ordinary Shares, par value €1 per share
3,264,000
$16.31
$53,235,840
$5,696.24
(1) American Depository Receipts evidencing American Depository Shares issuable on deposit of the Ordinary Shares have been registered pursuant to a separate registration statement on Form F-6 (Registration No. 333-6370) filed on January 31, 1997, as amended on August 14, 1998.  Each American Depository Share represents one Ordinary Share.
(2) Consists of (i) 1,000,000 Ordinary Shares deliverable pursuant to the exercise of stock options granted under the ILOG S.A. 1998 Stock Option Plan; (ii) 1,100,000 Ordinary Shares deliverable pursuant to the exercise of stock options granted under the ILOG S.A. 2001 Stock Option Plan; (iii) 800,000 Ordinary Shares deliverable pursuant to the exercise of stock options granted under the ILOG S.A. 2004 Stock Option Plan;
1
and (iv) 364,000 Ordinary Shares deliverable pursuant to the exercise of warrants granted to the Registrant's non-executive directors and members of the Registrant's Technical Advisory Board.  The amount being registered also includes an indeterminate number of Ordinary Shares which may be offered as a result of stock splits, stock dividends and anti-dilution provisions and other terms, in accordance with Rule 416 under the Securities Act of 1933, as amended (the "Securities Act").
(3)  Estimated solely for the purpose of computing the amount of the registration fee pursuant to Rule 457(c) and (h) under the Securities Act, based upon the average of the high and low prices per ADS reported on the Nasdaq National Market System on April 24, 2006.
2
PART I – INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
Item 1.
Plan Information*
Item 2.
Registrant Information and Employee Plan Annual Information*
*
As permitted by Rule 428 under the Securities Act of 1933, as amended (the "Securities Act"), this Registration Statement omits the information specified in Part I of Form S-8.  The documents containing the information specified in Part I will be delivered to the participants in the plans covered by this Registration Statement as required by Rule 428(b).  These documents and the documents incorporated herein by reference pursuant to Item 3 of Part II of this Registration Statement, taken together, constitute a prospectus that meets the requirements of Section 10(a) of the Securities Act.  Such documents are not being filed with the Securities and Exchange Commission (the "SEC") as part of this Registration Statement or as prospectuses or prospectus supplements pursuant to Rule 424(b) under the Securities Act.
3
PART II - INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3.
Incorporation of Documents by Reference
The SEC allows us to "incorporate by reference" the information we file with or furnish to them, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is considered to be part of this Registration Statement, and later information that we file with or, to the extent designated therein, furnish with the SEC will automatically update and supersede this information. The documents listed below have been filed with or furnished to the SEC by the Registrant, and are incorporated herein by reference:
•
Our Annual Report on Form 20-F for the fiscal year ended June 30, 2005, filed with the SEC on October 4, 2005 (File No. 001-29144);
•
Our reports on Form 6-K furnished to the SEC on October 27, 2005, November 3, 2005, January 17, 2006, January 26, 2006 and February 22, 2006 (File No. 001-29144); and
•
The description of Ordinary Shares and American Depositary Shares contained in the Registration Statement on Form 8-A, dated February 3, 1997 (File No. 000-29144) and any amendments or reports filed for the purpose of updating such description.
All documents  subsequently filed by the Registrant  pursuant to Sections 13(a),
13(c),  14 and 15(d) of the  Securities  Exchange Act of 1934 and, to the extent
designated  therein,  certain  reports  on Form 6-K  filed or  furnished  by the
Registrant,  prior to the filing of a  post-effective  amendment  that indicates
that all the Ordinary  Shares and/or American  Depositary  Shares offered hereby
have  been  sold  or  that  deregisters  all  Ordinary  Shares  and/or  American
Depositary Shares then remaining  unsold,  shall be deemed to be incorporated by
reference into, and to be a part of, this  Registration  Statement from the date
of filing  or  furnishing  of those  documents.  Any  statement  contained  in a
document  incorporated or deemed to be incorporated by reference herein shall be
deemed to be modified or superseded for purposes of this Registration  Statement
to the extent that a statement contained herein or in any
other subsequently filed or furnished document that also is or is deemed to be incorporated by reference herein
modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except
as so modified or superseded, to constitute a part of this Registration Statement.
Item 4.
Description of Securities
Not applicable.
Item 5.
Interests of Named Experts and Counsel.
Not applicable.
Item 6.  Indemnification of Directors and Officers.
French law prohibits the Registrant from entering into indemnification agreements with its directors and officers providing for limitations on personal liability for damages and other costs and expenses that may be incurred by directors and officers arising out of or related to acts or omissions in such capacity.  French law also prohibits the registrant from providing for limitation of liability of a member of the board of directors. Generally, under French law, directors and officers will not be held personally liable for decisions taken diligently and in the corporate interest of the Registrant.
The Registrant has contracted liability insurance for its directors and officers.
Item 7.
Exemption from Registration Claimed
Not applicable.
II-
1
Item 8.  Exhibits.
Exhibits
3.1
Statuts (by-laws), of ILOG S.A., as amended (unofficial English translation).  (Incorporated by reference to Exhibit 1 of the Company's Annual Report on Form 20-F for the year ended June 30, 2005 (File No. 001-29144).
4.1
Form of Deposit Agreement, dated as of February 13, 1997 and amended August 13, 1998, between the Registrant, JP Morgan Chase Bank, as depository and the holders of American Depository Shares.  (Incorporated by reference to Exhibit 2.1 of the Company's Annual Report on Form 20-F for the year ended June 30, 2005 (File No. 001-29144).
4.2*
ILOG S.A. 1998 Stock Option Plan
4.3*
ILOG S.A. 2001 Stock Option Plan
4.4*
ILOG S.A. 2004 Stock Option Plan
4.5*
Resolutions adopted by the ILOG S.A. shareholders on September 21, 1999
4.6*
Resolutions adopted by the Board of Directors of ILOG S.A. on September 22, 1999
4.7*
Form of Warrant issued on January 26,2000
4.8*
Resolutions adopted by the ILOG S.A. shareholders on October 18, 2000
4.9*
Resolutions adopted by the Board of Directors of ILOG S.A. on November 22, 2000
4.10*
Form of Warrant issued on December 22, 2000
4.11*
Resolutions adopted by the ILOG S.A. shareholders on December 18, 2000
4.12*
Resolutions adopted by the Board of Directors of ILOG S.A. on December 18, 2000
4.13*
Form of Warrant issued on December 22, 2000
4.14*
Resolutions adopted by the ILOG S.A. shareholders on December 18, 2001
4.15*
Resolutions adopted by the Board of Directors of ILOG S.A. on December 18, 2001
4.16*
Form of Warrant issued on December 20, 2001
4.17*
Resolutions adopted by the ILOG S.A. shareholders on December 17, 2002
4.18*
Resolutions adopted by the Board of Directors of ILOG S.A. on February 26, 2003
4.19*
Form of Warrant issued on March 10, 2003
II-2
4.20*
Resolutions adopted by the Board of Directors of ILOG S.A. on June 18, 2003
4.21*
Form of Warrant issued on June 19, 2003
4.22*
Resolutions adopted by the ILOG S.A. shareholders on December 16, 2003
4.23*
Resolutions adopted by the Board of Directors of ILOG S.A. on December 16, 2003
4.24*
Form of Warrant issued on December 17, 2003
4.25*
Resolutions adopted by the ILOG S.A. shareholders on November 30, 2004
4.26*
Resolutions adopted by the Board of Directors of ILOG S.A. on November 30, 2004
4.27*
Form of Warrant issued on December 1, 2004
4.28*
Resolutions adopted by the ILOG S.A. shareholders on November 29, 2005
4.29*
Resolutions adopted by the Board of Directors of ILOG S.A. on November 29, 2005
4.30*
Form of Warrant issued on November 30, 2005
5.1*
Opinion of Paul, Hastings, Janofsky & Walker (Europe) LLP
23.1*
Consent of Ernst & Young Audit
23.2
Consent of Paul, Hastings, Janofsky & Walker (Europe) LLP (contained in Exhibit 5.1)
24.1
Power of Attorney (contained on signature page hereto)
* Filed herewith
Item 9.
Undertakings
The undersigned Registrant hereby undertakes as follows:
(1)           To file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement:
(i) to include any prospectus required by Section 10(a)(3) of the Securities Act;
(ii) to reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in the volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20 percent change in the maximum aggregate offering price set forth in the "Calculation of Registration Fee" table in the effective registration statement;
II-3
(iii) to include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement.
provided, however
,
(A)
Paragraphs (1)(i) and (1)(ii) of this section do not apply if the registration statement is on Form S-8, and the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the SEC by the Registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement; and
(B)
Paragraphs (1)(i), (1)(ii) and (1)(iii) of this section do not apply if the registration statement is on Form S-3 or Form F-3 and the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the SEC by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.
(C)          Provided further, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the registration statement is for an offering of asset-backed securities on Form S-1 (§ 239.11 of this chapter) or Form S-3 (§ 239.13 of this chapter), and the information required to be included in a post-effective amendment is provided pursuant to Item 1100(c) of Regulation AB
(2)           That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof.
(3)           To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
(4)           If the Registrant is a foreign private issuer, to file a post-effective amendment to the registration statement to include any financial statements required by §210.3-19 of this chapter at the start of any delayed offering or throughout a continuous offering. Financial statements and information otherwise required by Section 10(a)(3) of the Act need not be furnished, provided that the Registrant includes in the prospectus, by means of a post-effective amendment, financial statements required pursuant to this paragraph (a)(4) and other information necessary to ensure that all other information in the prospectus is at least as current as the date of those financial statements. Notwithstanding the foregoing, with respect to registration statements on Form F-3, a post-effective amendment need not be filed to include
financial statements and information required by Section 10(a)(3) of the Act or § 210.3-19 of this chapter if such financial statements and information are contained in periodic reports filed with or furnished to the SEC by the Registrant pursuant to section 13 or section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the Form F-3.
(5)           That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:
(i) If the registrant is relying on Rule 430B (§230.430B of this chapter):
(A) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) (§230.424(b)(3) of this chapter) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and
(B) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) (§230.424(b)(2), (b)(5), or (b)(7) of this chapter) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) (§230.415(a)(1)(i), (vii), or (x) of this chapter) for the purpose of providing the information required by section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included
II-4
in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
Provided, however
, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or
prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date;
or
(ii) If the registrant is subject to Rule 430C (§230.430C of this chapter), each prospectus filed pursuant to Rule 424(b) as part of a registration statement relating to an offering, other than registration statements relying on Rule 430B or other than prospectuses filed in reliance on Rule 430A (§230.430A of this chapter), shall be deemed to be part of and included in the registration statement as of the date it is first used after effectiveness. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such first use, supersede or modify any statement that was made in the registration
statement or prospectus that was part of the registration statement or made in any such document immediately prior to such date of first use.
(6)           That, for the purpose of determining liability of the registrant under the Securities Act to any purchaser in the initial distribution of the securities:
The undersigned Registrant undertakes that in a primary offering of securities of the undersigned Registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned Registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:
(i) Any preliminary prospectus or prospectus of the undersigned Registrant relating to the offering required to be filed pursuant to Rule 424;
(ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned Registrant or used or referred to by the undersigned Registrant;
(iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned Registrant or its securities provided by or on behalf of the undersigned Registrant; and
(iv) Any other communication that is an offer in the offering made by the undersigned Registrant to the purchaser.
The undersigned Registrant hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of the Registrant's annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Securities Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof.
Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the Registrant pursuant to provisions pursuant to which the directors, officers or controlling persons may be indemnified by the registrant or otherwise, the registrant has been advised that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is,
II-5
therefore, unenforceable.  In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.
II-6
SIGNATURES
Pursuant to the  requirements  of the  Securities  Act of 1933,  the  registrant
certifies  that it has  reasonable  grounds  to  believe  that it meets  all the
requirements  for  filing  on Form S-8 and has  duly  caused  this  registration
statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized,  in the city of Gentilly, the Republic of France on this 27th day of
April, 2006.
ILOG S.A.
By:
/s/ Jerome Arnaud
Jerome Arnaud
Chief Financial Officer
KNOW ALL MEN BY THESE PRESENTS,  that each person whose signature  appears below
hereby  constitutes and appoints  Pierre Haren and Jerome  Arnaud
and each of them,  jointly and severally,  the
undersigned's true and lawful  attorneys-in-fact and agents, each with full
power of substitution and resubstitution,  in the undersigned's name and in
the  capacity  indicated  below,  to  sign  any and  all  amendments  (including
post-effective  amendments)  to this  registration  statement on Form S-8 and to
file  the  same,  with  exhibits  thereto  and  other  documents  in  connection
therewith,  with  the  Securities  and  Exchange  Commission,  granting  to such
attorneys-in-fact  and agents,  and each of them, full power and authority to do
all other acts and things  requisite or necessary to be done, and to execute all
such other documents as they, or any of them, may deem necessary or desirable in
connection with the foregoing,  as fully as the undersigned might or could do in
person, hereby ratifying and confirming all that each of said attorneys-in-fact,
or the undersigned's  substitute or substitutes, may do or cause to be done
by virtue hereof.
Pursuant to the  requirements of the Securities Act of 1933,  this  registration
statement has been signed by the following  persons in the capacities and on the
dates indicated.
Signature
Title
Date
/s/ Pierre Haren
Pierre Haren
Chairman and Chief Executive Officer
(Principal Executive Officer)
April 27, 2006
/s/ Jerome Arnaud
Jerome Arnaud
Chief Financial Officer (Principal Financial and Accounting Officer)
April 27, 2006
Michel Alard
Director
/s/ Marie-Claude Bernal
Marie-Claude Bernal
Director
April 27, 2006
/s/ Pascal Brandys
Pascal Brandys
Director
April 27, 2006
II-7
/s/ Marc Fourrier
Marc Fourrier
Director
April 27, 2006
/s/ Richard Liebhaber
Richard Liebhaber
Director
April 27, 2006
Todd Lowe
Director
Pierre-Michel Peugnet
Director
ILOG, Inc.
By:
Kim Funk
Title:
Secretary
Authorized Representative in the United States
April 27, 2006
II-8
INDEX TO EXHIBITS
Exhibits
3.1
Statuts (by-laws), of ILOG S.A., as amended (unofficial English translation).  (Incorporated by reference to Exhibit 1 of the Company's Annual Report on Form 20-F for the year ended June 30, 2005 (File No. 001-29144).
4.1
Form of Deposit Agreement, dated as of February 13, 1997 and amended on August 13, 1999, between the Registrant, JP Morgan Chase Bank, as depository and the holders of American Depository Shares. (Incorporated by reference to the Registrant's Registration Statement on Form F-6 (Registration No. 333-06370) filed on January 31, 1997).
4.2*
ILOG S.A. 1998 Stock Option Plan
4.3*
ILOG S.A. 2001 Stock Option Plan
4.4*
ILOG S.A. 2004 Stock Option Plan
4.5*
Resolutions adopted by the ILOG S.A. shareholders on September 21, 1999 relating to the grants of warrants
4.6*
Resolutions adopted by the Board of Directors of ILOG S.A. on September 22, 1999 relating to the grants of warrants
4.7*
Form of Warrant issued on January 26,2000
4.8*
Resolutions adopted by the ILOG S.A. shareholders on October 18, 2000 relating to the grants of warrants
4.9*
Resolutions adopted by the Board of Directors of ILOG S.A. on November 22, 2000 relating to the grants of warrants
4.10*
Form of Warrant issued on December 22, 2000
4.11*
Resolutions adopted by the ILOG S.A. shareholders on December 18, 2000 relating to the grants of warrants
4.12*
Resolutions adopted by the Board of Directors of ILOG S.A. on December 18, 2000 relating to the grants of warrants
4.13*
Form of Warrant issued on December 22, 2000
4.14*
Resolutions adopted by the ILOG S.A. shareholders on December 18, 2001 relating to the grants of warrants
4.15*
Resolutions adopted by the Board of Directors of ILOG S.A. on December 18, 2001 relating to the grants of warrants
4.16*
Form of Warrant issued on December 20, 2001
4.17*
Resolutions adopted by the ILOG S.A. shareholders on December 17, 2002 relating to the grants of warrants
4.18*
Resolutions adopted by the Board of Directors of ILOG S.A. on February 26, 2003 relating to the grants of warrants
4.19*
Form of Warrant issued on March 10, 2003
4.20*
Resolutions adopted by the Board of Directors of ILOG S.A. on June 18, 2003 relating to the grants of warrants
4.21*
Form of Warrant issued on June 19, 2003
4.22*
Resolutions adopted by the ILOG S.A. shareholders on December 16, 2003 relating to the grants of warrants
4.23*
Resolutions adopted by the Board of Directors of ILOG S.A. on December 16, 2003 relating to the grants of warrants
4.24*
Form of Warrant issued on December 17, 2003
4.25*
Resolutions adopted by the ILOG S.A. shareholders on November 30, 2004 relating to the grants of warrants
4.26*
Resolutions adopted by the Board of Directors of ILOG S.A. on November 30, 2004 relating to the grants of warrants
4.27*
Form of Warrant issued on December 1, 2004
4.28*
Resolutions adopted by the ILOG S.A. shareholders on November 29, 2005 relating to the grants of warrants
4.29*
Resolutions adopted by the Board of Directors of ILOG S.A. on November 29, 2005 relating to the grants of warrants
4.30*
Form of Warrant issued on November 30, 2005
5.1*
Opinion of Paul, Hastings, Janofsky & Walker (Europe) LLP
23.1*
Consent of Ernst & Young Audit
23.2
Consent of Paul, Hastings, Janofsky & Walker (Europe) LLP (contained in Exhibit 5.1)
24.1
Power of Attorney (contained on signature page hereto)
*Filed herewith