<HTML>
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<TITLE>sv8</TITLE>
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<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>As filed with the Securities and Exchange Commission on February&nbsp;14, 2008</B>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 6pt"><B>Registration
No.&nbsp;333-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</B>
</DIV>


<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM S-8</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>REGISTRATION STATEMENT<BR>
UNDER<BR>
THE SECURITIES ACT OF 1933</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></B>
</DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>ArcSight, Inc.</B>
</DIV>

<DIV align="center" style="font-size: 10pt">(Exact Name of Registrant as Specified in Its Charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B><BR>
(State or Other Jurisdiction <BR>
of Incorporation or Organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>52-2241535</B><BR>
(I.R.S. Employer<BR>
Identification No.)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>5 Results Way<BR>
Cupertino, California 95014</B><BR>
(Address of Principal Executive Offices) (Zip Code)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>2000 Stock Incentive Plan<BR>
2002 Stock Plan, as amended<BR>
2007 Equity Incentive Plan<BR>
2007 Employee Stock Purchase Plan</B><BR>
(Full Titles of the Plans)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Robert W. Shaw<BR>
Chief Executive Officer and<BR>
Chairman of the Board<BR>
ArcSight, Inc.<BR>
5 Results Way<BR>
Cupertino, California 95104</B><BR>
(Name and Address of Agent For Service)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>(408)&nbsp;864-2600</B><BR>
(Telephone Number, including area code, of agent for service)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B><I>Please send copies of all communications to:</I></B></DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>Tr&#226;m T. Phi, Esq. <BR>
Vice President and General Counsel <BR>
ArcSight, Inc. <BR>
5 Results Way <BR>
Cupertino, California 95014</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>David A. Bell, Esq.<BR>
Michael A. Brown, Esq.<BR>
Fenwick &#038; West LLP<BR>
801 California Street<BR>
Mountain View, California 94041</B></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer,
a non-accelerated filer, or a smaller reporting company. See the definitions of &#147;large accelerated filer,&#148; &#147;accelerated filer&#148; and &#147;smaller reporting company&#148; in
Rule&nbsp;12b-2 of the Exchange Act. (Check one):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="23%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="23%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="23%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="23%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top">Large accelerated filer&nbsp;<FONT face="Wingdings">&#111;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Accelerated filer&nbsp;<FONT face="Wingdings">&#111;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Non-accelerated
filer&nbsp;<FONT face="Wingdings">&#254;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Smaller reporting company&nbsp;<FONT face="Wingdings">&#111;</FONT></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD colspan="5" align="center" valign="top">(Do not check if a smaller reporting company)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CALCULATION OF REGISTRATION FEE</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="1%">&nbsp;</TD>
    <TD width="54%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Proposed Maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Proposed Maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>Title of Each Class of Securities</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Amount To Be</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Offering Price</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Aggregate Offering</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Amount of</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>To Be Registered</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Registered (1)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Per Unit</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Price</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Registration Fee</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
                    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock, $0.00001 par value per share</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">&nbsp;</TD>

<TD align="right" style="border-top: 2px solid #000000">6,508,685 </TD>
    <TD nowrap style="border-top: 2px solid #000000">(2)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">5.31</TD>
    <TD nowrap style="border-top: 2px solid #000000">(3)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">34,565,932.43</TD>
    <TD nowrap style="border-top: 2px solid #000000">(3)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">1,358.44</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock, $0.00001 par value per share</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">5,569,015 </TD>
    <TD nowrap style="border-top: 2px solid #000000">(4)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">9.00</TD>
    <TD nowrap style="border-top: 2px solid #000000">(5)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">50,121,135.00</TD>
    <TD nowrap style="border-top: 2px solid #000000">(5)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">1,969.76</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:30px; text-indent:-15px"><B>TOTAL</B></DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">12,077,700</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">N/A</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">N/A</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">3,328.20</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>



<DIV style="margin-top: 3pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the &#147;<B><I>Securities Act</I></B>&#148;),
this Registration Statement shall cover any additional shares of the Registrant&#146;s Common Stock
that become issuable under the 2000 Stock Incentive Plan (the &#147;<B><I>2000 Plan</I></B>&#148;), the 2002
Stock Plan, as amended (the &#147;<B><I>2002 Plan</I></B>&#148;), the 2007 Equity Incentive Plan (the &#147;<B><I>2007 EIP</I></B>&#148;) and
the 2007 Employee Stock Purchase Plan (the &#147;<B><I>2007 ESPP</I></B>&#148;) by reason of any stock dividend, stock
split, recapitalization or other similar transaction effected without the receipt of
consideration that increases the number of the Registrant&#146;s outstanding shares of Common Stock.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Represents shares subject to options outstanding under the 2000 Plan (39,375) and the 2002
Plan (6,469,310) as of the date of this Registration Statement.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(3)</TD>
    <TD>&nbsp;</TD>
    <TD>Represents the weighted average exercise price (rounded to the nearest cent) for such
outstanding options pursuant to Rule 457(h) of the Securities Act.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(4)</TD>
    <TD>&nbsp;</TD>
    <TD>Represents shares available for grant, but not yet granted,
under the 2007 EIP (4,569,015)
and the 2007 ESPP (1,000,000) as of the date of the Registration Statement.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(5)</TD>
    <TD>&nbsp;</TD>
    <TD>Estimated pursuant to Rule 457(c) of the Securities Act, based on the initial public offering
price of the Registrant&#146;s Common Stock as set forth in the Registrant&#146;s prospectus filed with
the Securities and Exchange Commission (the &#147;<B><I>Commission</I></B>&#148;) on February&nbsp;14, 2008 pursuant to
Rule 424(b) under the Securities Act.</TD>
</TR>

</TABLE>
</DIV>


<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>





<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">





<DIV align="left">
<!-- TOC -->
</DIV>
<DIV align="left">
<A name="tocpage"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>TABLE OF CONTENTS</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="13%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="79%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="4%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#101">PART II</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#102">Item&nbsp;3.</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><A href="#102">Incorporation of Documents by Reference</A></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">II-1</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#103">Item&nbsp;4.</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><A href="#103">Description of Securities</A></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">II-1</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#104">Item&nbsp;5.</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><A href="#104">Interests of Named Experts and Counsel</A></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">II-1</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#105">Item&nbsp;6.</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><A href="#105">Indemnification of Directors and Officers</A></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">II-1</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#106">Item&nbsp;7.</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><A href="#106">Exemption from Registration Claimed</A></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">II-2</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#107">Item&nbsp;8.</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><A href="#107">Exhibits</A></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">II-2</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#108">Item&nbsp;9.</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><A href="#108">Undertakings</A></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">II-3</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#109">SIGNATURES</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">II-4</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#110">EXHIBIT INDEX</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="f37961exv5w1.htm">EXHIBIT 5.1</A></FONT></TD></TR>
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="f37961exv23w1.htm">EXHIBIT 23.1</A></FONT></TD></TR>
</TABLE>
</DIV>

<DIV align="left">
<!-- /TOC -->
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left">
<A name="101"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II</B>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Information Required in the Registration Statement</B>
</DIV>

<DIV align="left">
<A name="102"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;3. </B><U><B>Incorporation of Documents by Reference</B></U><B>.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ArcSight, Inc. (the &#147;<B><I>Registrant</I></B>&#148;) hereby incorporates by reference into this Registration
Statement the following documents previously filed with the Commission:
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Registrant&#146;s prospectus filed on February&nbsp;14, 2008 pursuant to Rule 424(b)
under the Securities Act relating to the Registration Statement on Form S-1 (File No.
333-145974) (the &#147;<B><I>Form&nbsp;S-1</I></B>&#148;); and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The description of the Registrant&#146;s Common Stock contained in the Registrant&#146;s
Registration Statement on Form 8-A (File No.&nbsp;001-33923) filed with the Commission on
January&nbsp;22, 2008 under Section 12(b) of the Securities Exchange Act of 1934, as amended
(the &#147;<B><I>Exchange Act</I></B>&#148;), including any amendment or report filed for the purpose of
updating such description.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents subsequently filed by the Registrant pursuant to Sections&nbsp;13(a), 13(c), 14 and
15(d) of the Exchange Act, prior to the filing of a post-effective amendment which indicates that
all securities offered by this Registration Statement have been sold or which deregisters all
securities then remaining unsold, shall be deemed to be incorporated by reference into this
Registration Statement and to be a part of this Registration Statement from the date of the filing
of such documents.
</DIV>

<DIV align="left">
<A name="103"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;4. </B><U><B>Description of Securities</B></U><B>.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>

<DIV align="left">
<A name="104"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;5. </B><U><B>Interests of Named Experts and Counsel</B></U><B>.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>

<DIV align="left">
<A name="105"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;6. </B><U><B>Indemnification of Directors and Officers</B></U><B>.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;145 of the Delaware General Corporation Law authorizes a court to award, or a
corporation&#146;s board of directors to grant, indemnity to directors and officers under certain
circumstances and subject to certain limitations. The terms of Section&nbsp;145 of the Delaware General
Corporation Law are sufficiently broad to permit indemnification under certain circumstances for
liabilities, including reimbursement of expenses incurred, arising under the Securities Act.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As permitted by the Delaware General Corporation Law, the Registrant&#146;s restated certificate of
incorporation contains provisions that eliminate the personal liability of its directors for
monetary damages for any breach of fiduciary duties as a director, except liability for the
following:
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>any breach of the director&#146;s duty of loyalty to the Registrant or its
stockholders;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>acts or omissions not in good faith or that involve intentional misconduct or a
knowing violation of law;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>under Section&nbsp;174 of the Delaware General Corporation Law (regarding unlawful
dividends and stock purchases); or</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>any transaction from which the director derived an improper personal benefit.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As permitted by the Delaware General Corporation Law, the Registrant&#146;s restated bylaws, to be
effective upon the completion of this offering, provide that:
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->II-1<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>the Registrant is required to indemnify its directors and executive officers to
the fullest extent permitted by the Delaware General Corporation Law, subject to very
limited exceptions;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>the Registrant may indemnify its other employees and agents as set forth in the
Delaware General Corporation Law;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>the Registrant is required to advance expenses, as incurred, to its directors
and executive officers in connection with a legal proceeding to the fullest extent
permitted by the Delaware General Corporation Law, subject to very limited exceptions;
and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>the rights conferred in the bylaws are not exclusive.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant has entered into or will enter into indemnity agreements with its current
directors and executive officers to provide these directors and executive officers additional
contractual assurances regarding the scope of the indemnification set forth in the Registrant&#146;s
restated certificate of incorporation and restated bylaws and to provide additional procedural
protections. At present, there is no pending litigation or proceeding involving a director or
executive officer of the Registrant regarding which indemnification is sought. The indemnification
provisions in the Registrant&#146;s restated certificate of incorporation, restated bylaws and the
indemnification agreements entered into or to be entered into between the Registrant and its
directors and executive officers may be sufficiently broad to permit indemnification of the
Registrant&#146;s directors and executive officers for liabilities arising under the Securities Act.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant currently carries liability insurance for its directors and executive officers.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;One of Registrant&#146;s directors (Ted Schlein) is also indemnified by his employer with regard to
his service on the Registrant&#146;s board of directors.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;See also the undertakings set out in response to Item&nbsp;9 hereof.
</DIV>

<DIV align="left">
<A name="106"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;7. </B><U><B>Exemption from Registration Claimed</B></U><B>.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>

<DIV align="left">
<A name="107"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8. </B><U><B>Exhibits</B></U><B>.</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="7%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="90%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Number</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Exhibit Title</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Restated Certificate of Incorporation of the Registrant (incorporated herein by reference to Exhibit&nbsp;3.2 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form&nbsp;Amended and Restated Bylaws of the Registrant (incorporated herein by reference to Exhibit&nbsp;3.4 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Registrant&#146;s common stock certificate (incorporated herein by reference to Exhibit&nbsp;4.1 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.4
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Investors&#146; Rights Agreement, dated as of October&nbsp;24, 2002, between the Registrant and certain security holders of the Registrant (incorporated herein by reference to Exhibit&nbsp;4.2 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.5
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2000 Stock Incentive Plan (incorporated herein by reference to Exhibit&nbsp;10.2 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.6
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2002 Stock Plan, as amended (incorporated herein by reference to Exhibit&nbsp;10.4 of the Form&nbsp;S-1).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->II-2<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="7%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="90%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Number</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Exhibit Title</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.7
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2007 Equity Incentive Plan (incorporated herein by reference to Exhibit&nbsp;10.6 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.8
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2007 Employee Stock Purchase Plan (incorporated herein by reference to Exhibit&nbsp;10.8 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Fenwick &#038; West LLP.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Ernst &#038; Young LLP, Independent Registered Public Accounting Firm.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Fenwick &#038; West LLP (included in Exhibit&nbsp;5.1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Power of Attorney (see page II-4 of this Registration Statement).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="left">
<A name="108"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9. </B><U><B>Undertakings</B></U><B>.</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;The undersigned Registrant hereby undertakes:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;To file, during any period in which offers or sales are being made, a post-effective
amendment to this Registration Statement: (i)&nbsp;to include any prospectus required by Section
10(a)(3) of the Securities Act; (ii)&nbsp;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 this Registration Statement. Notwithstanding the foregoing, any increase or decrease
in 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 Commission pursuant to
Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 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; and (iii)&nbsp;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; <I>provided</I>,
<I>however</I>, that clauses (1)(i) and (1)(ii) above do not apply if the information required to be
included in a post-effective amendment by those clauses is contained in periodic reports filed with
or furnished to the Commission by the Registrant pursuant to Section&nbsp;13 or Section 15(d) of the
Exchange Act that are incorporated by reference in this Registration Statement.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;That, for the purpose of determining any liability under the Securities Act, 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 <I>bona fide </I>offering thereof.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;To remove from registration by means of a post-effective amendment any of the securities
being registered that remain unsold at the termination of the offering.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;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 Section 15(d) of the Exchange Act (and, where applicable, each filing of an
employee benefit plan&#146;s annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference into this 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 <I>bona fide </I>offering thereof.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Commission such indemnification is against public policy as expressed in the Securities Act and is,
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.
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->II-3<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left">
<A name="109"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it
has reasonable grounds to believe that it meets all of 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 Cupertino, State of California, on February&nbsp;14, 2008.
</DIV>


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left"><B>ARCSIGHT, INC.</B><BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ <FONT style="font-variant: SMALL-CAPS">Robert W. Shaw</FONT>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Robert W. Shaw&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Chief Executive Officer and
Chairman of the Board of Directors&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>POWER OF ATTORNEY</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>KNOW ALL PERSONS BY THESE PRESENTS</B>, that each person whose signature appears below hereby
constitutes and appoints Robert W. Shaw and Stewart Grierson, and each of them acting individually,
as his or her true and lawful attorneys-in-fact and agents with full power of substitution, for him
or her in any and all capacities, to sign any 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, hereby ratifying and confirming all that each of said
attorneys-in-fact, or any substitute, may do or cause to be done by virtue hereof. This Power of
Attorney may be signed in any number of counterparts, each of which when so executed and delivered
shall be deemed an original, and such counterparts shall together constitute one and the same
instrument.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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.
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="35%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="24%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Signature</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Title</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Date</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">/s/ <FONT style="font-variant: SMALL-CAPS">Robert W. Shaw</FONT>
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Robert W. Shaw
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Chief Executive Officer and
Chairman of <br>the Board of Directors<BR>
(Principal Executive Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February&nbsp;14, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">/s/ <FONT style="font-variant: SMALL-CAPS">Stewart Grierson</FONT>
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Stewart Grierson
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Chief Financial Officer<BR>
(Principal Accounting<BR>
and Financial Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February&nbsp;14, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">/s/ <FONT style="font-variant: SMALL-CAPS">Sandra Bergeron</FONT>
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Sandra Bergeron
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February&nbsp;14, 2008&nbsp;&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">/s/ <FONT style="font-variant: SMALL-CAPS">William P. Crowell</FONT>
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
William P. Crowell
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February&nbsp;14, 2008&nbsp;&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">/s/ <FONT style="font-variant: SMALL-CAPS">E. Stanton McKee, Jr.</FONT>
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
E. Stanton McKee, Jr.
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February&nbsp;14, 2008&nbsp;&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->II-4<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="31%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="31%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="31%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Signature</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Title</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Date</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">/s/ <FONT style="font-variant: SMALL-CAPS">Craig Ramsey</FONT>
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Craig Ramsey
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February&nbsp;14, 2008&nbsp;&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">/s/ <FONT style="font-variant: SMALL-CAPS">Scott A. Ryles</FONT>
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Scott A. Ryles
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February&nbsp;14, 2008&nbsp;&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">/s/ <FONT style="font-variant: SMALL-CAPS">Ted Schlein</FONT>
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Ted Schlein
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February&nbsp;14, 2008&nbsp;&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">/s/ <FONT style="font-variant: SMALL-CAPS">Ernest von Simson</FONT>
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Ernest von Simson
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February&nbsp;14, 2008&nbsp;&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->II-5<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left">
<A name="110"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT INDEX</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="7%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="90%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Number</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Exhibit Title</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Restated Certificate of Incorporation of the Registrant (incorporated herein by
reference to Exhibit&nbsp;3.2 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form&nbsp;Amended and Restated Bylaws of the Registrant (incorporated herein by reference to
Exhibit&nbsp;3.4 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Registrant&#146;s common stock certificate (incorporated herein by reference to Exhibit&nbsp;4.1
of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.4
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Investors&#146; Rights Agreement, dated as of October&nbsp;24, 2002, between the
Registrant and certain security holders of the Registrant (incorporated herein by reference to
Exhibit&nbsp;4.2 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.5
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2000 Stock Incentive Plan (incorporated herein by reference to Exhibit&nbsp;10.2 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.6
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2002 Stock Plan, as amended (incorporated herein by reference to Exhibit&nbsp;10.4 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.7
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2007 Equity Incentive Plan (incorporated herein by reference to Exhibit&nbsp;10.6 of the Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.8
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2007 Employee Stock Purchase Plan (incorporated herein by reference to Exhibit&nbsp;10.8 of the
Form&nbsp;S-1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Fenwick &#038; West LLP.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Ernst &#038; Young LLP, Independent Registered Public Accounting Firm.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Fenwick &#038; West LLP (included in Exhibit&nbsp;5.1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Power of Attorney (see page II-4 of this Registration Statement).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>



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sv8
Table of Contents
As filed with the Securities and Exchange Commission on February 14, 2008
Registration
No. 333-
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
ArcSight, Inc.
(Exact Name of Registrant as Specified in Its Charter)
Delaware
(State or Other Jurisdiction
of Incorporation or Organization)
52-2241535
(I.R.S. Employer
Identification No.)
5 Results Way
Cupertino, California 95014
(Address of Principal Executive Offices) (Zip Code)
2000 Stock Incentive Plan
2002 Stock Plan, as amended
2007 Equity Incentive Plan
2007 Employee Stock Purchase Plan
(Full Titles of the Plans)
Robert W. Shaw
Chief Executive Officer and
Chairman of the Board
ArcSight, Inc.
5 Results Way
Cupertino, California 95104
(Name and Address of Agent For Service)
(408) 864-2600
(Telephone Number, including area code, of agent for service)
Please send copies of all communications to:
Trâm T. Phi, Esq.
Vice President and General Counsel
ArcSight, Inc.
5 Results Way
Cupertino, California 95014
David A. Bell, Esq.
Michael A. Brown, Esq.
Fenwick & West LLP
801 California Street
Mountain View, California 94041
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer,
a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in
Rule 12b-2 of the Exchange Act. (Check one):
Large accelerated filer
o
Accelerated filer
o
Non-accelerated
filer
þ
Smaller reporting company
o
(Do not check if a smaller reporting company)
CALCULATION OF REGISTRATION FEE
Proposed Maximum
Proposed Maximum
Title of Each Class of Securities
Amount To Be
Offering Price
Aggregate Offering
Amount of
To Be Registered
Registered (1)
Per Unit
Price
Registration Fee
Common Stock, $0.00001 par value per share
6,508,685
(2)
$
5.31
(3)
$
34,565,932.43
(3)
$
1,358.44
Common Stock, $0.00001 par value per share
5,569,015
(4)
$
9.00
(5)
$
50,121,135.00
(5)
$
1,969.76
TOTAL
12,077,700
N/A
N/A
$
3,328.20
(1)
Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the "
Securities Act
"),
this Registration Statement shall cover any additional shares of the Registrant's Common Stock
that become issuable under the 2000 Stock Incentive Plan (the "
2000 Plan
"), the 2002
Stock Plan, as amended (the "
2002 Plan
"), the 2007 Equity Incentive Plan (the "
2007 EIP
") and
the 2007 Employee Stock Purchase Plan (the "
2007 ESPP
") by reason of any stock dividend, stock
split, recapitalization or other similar transaction effected without the receipt of
consideration that increases the number of the Registrant's outstanding shares of Common Stock.
(2)
Represents shares subject to options outstanding under the 2000 Plan (39,375) and the 2002
Plan (6,469,310) as of the date of this Registration Statement.
(3)
Represents the weighted average exercise price (rounded to the nearest cent) for such
outstanding options pursuant to Rule 457(h) of the Securities Act.
(4)
Represents shares available for grant, but not yet granted,
under the 2007 EIP (4,569,015)
and the 2007 ESPP (1,000,000) as of the date of the Registration Statement.
(5)
Estimated pursuant to Rule 457(c) of the Securities Act, based on the initial public offering
price of the Registrant's Common Stock as set forth in the Registrant's prospectus filed with
the Securities and Exchange Commission (the "
Commission
") on February 14, 2008 pursuant to
Rule 424(b) under the Securities Act.
TABLE OF CONTENTS
PART II
Item 3.
Incorporation of Documents by Reference
II-1
Item 4.
Description of Securities
II-1
Item 5.
Interests of Named Experts and Counsel
II-1
Item 6.
Indemnification of Directors and Officers
II-1
Item 7.
Exemption from Registration Claimed
II-2
Item 8.
Exhibits
II-2
Item 9.
Undertakings
II-3
SIGNATURES
II-4
EXHIBIT INDEX
EXHIBIT 5.1
EXHIBIT 23.1
Table of Contents
PART II
Information Required in the Registration Statement
Item 3.
Incorporation of Documents by Reference
.
ArcSight, Inc. (the "
Registrant
") hereby incorporates by reference into this Registration
Statement the following documents previously filed with the Commission:
(a)
The Registrant's prospectus filed on February 14, 2008 pursuant to Rule 424(b)
under the Securities Act relating to the Registration Statement on Form S-1 (File No.
333-145974) (the "
Form S-1
"); and
(b)
The description of the Registrant's Common Stock contained in the Registrant's
Registration Statement on Form 8-A (File No. 001-33923) filed with the Commission on
January 22, 2008 under Section 12(b) of the Securities Exchange Act of 1934, as amended
(the "
Exchange Act
"), including any amendment or report 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 Exchange Act, prior to the filing of a post-effective amendment which indicates that
all securities offered by this Registration Statement have been sold or which deregisters all
securities then remaining unsold, shall be deemed to be incorporated by reference into this
Registration Statement and to be a part of this Registration Statement from the date of the filing
of such documents.
Item 4.
Description of Securities
.
Not applicable.
Item 5.
Interests of Named Experts and Counsel
.
Not applicable.
Item 6.
Indemnification of Directors and Officers
.
Section 145 of the Delaware General Corporation Law authorizes a court to award, or a
corporation's board of directors to grant, indemnity to directors and officers under certain
circumstances and subject to certain limitations. The terms of Section 145 of the Delaware General
Corporation Law are sufficiently broad to permit indemnification under certain circumstances for
liabilities, including reimbursement of expenses incurred, arising under the Securities Act.
As permitted by the Delaware General Corporation Law, the Registrant's restated certificate of
incorporation contains provisions that eliminate the personal liability of its directors for
monetary damages for any breach of fiduciary duties as a director, except liability for the
following:
•
any breach of the director's duty of loyalty to the Registrant or its
stockholders;
•
acts or omissions not in good faith or that involve intentional misconduct or a
knowing violation of law;
•
under Section 174 of the Delaware General Corporation Law (regarding unlawful
dividends and stock purchases); or
•
any transaction from which the director derived an improper personal benefit.
As permitted by the Delaware General Corporation Law, the Registrant's restated bylaws, to be
effective upon the completion of this offering, provide that:
II-1
Table of Contents
•
the Registrant is required to indemnify its directors and executive officers to
the fullest extent permitted by the Delaware General Corporation Law, subject to very
limited exceptions;
•
the Registrant may indemnify its other employees and agents as set forth in the
Delaware General Corporation Law;
•
the Registrant is required to advance expenses, as incurred, to its directors
and executive officers in connection with a legal proceeding to the fullest extent
permitted by the Delaware General Corporation Law, subject to very limited exceptions;
and
•
the rights conferred in the bylaws are not exclusive.
The Registrant has entered into or will enter into indemnity agreements with its current
directors and executive officers to provide these directors and executive officers additional
contractual assurances regarding the scope of the indemnification set forth in the Registrant's
restated certificate of incorporation and restated bylaws and to provide additional procedural
protections. At present, there is no pending litigation or proceeding involving a director or
executive officer of the Registrant regarding which indemnification is sought. The indemnification
provisions in the Registrant's restated certificate of incorporation, restated bylaws and the
indemnification agreements entered into or to be entered into between the Registrant and its
directors and executive officers may be sufficiently broad to permit indemnification of the
Registrant's directors and executive officers for liabilities arising under the Securities Act.
The Registrant currently carries liability insurance for its directors and executive officers.
One of Registrant's directors (Ted Schlein) is also indemnified by his employer with regard to
his service on the Registrant's board of directors.
See also the undertakings set out in response to Item 9 hereof.
Item 7.
Exemption from Registration Claimed
.
Not applicable.
Item 8.
Exhibits
.
Exhibit
Number
Exhibit Title
4.1
Form of Restated Certificate of Incorporation of the Registrant (incorporated herein by reference to Exhibit 3.2 of the Form S-1).
4.2
Form Amended and Restated Bylaws of the Registrant (incorporated herein by reference to Exhibit 3.4 of the Form S-1).
4.3
Form of Registrant's common stock certificate (incorporated herein by reference to Exhibit 4.1 of the Form S-1).
4.4
Amended and Restated Investors' Rights Agreement, dated as of October 24, 2002, between the Registrant and certain security holders of the Registrant (incorporated herein by reference to Exhibit 4.2 of the Form S-1).
4.5
2000 Stock Incentive Plan (incorporated herein by reference to Exhibit 10.2 of the Form S-1).
4.6
2002 Stock Plan, as amended (incorporated herein by reference to Exhibit 10.4 of the Form S-1).
II-2
Table of Contents
Exhibit
Number
Exhibit Title
4.7
2007 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.6 of the Form S-1).
4.8
2007 Employee Stock Purchase Plan (incorporated herein by reference to Exhibit 10.8 of the Form S-1).
5.1
Opinion of Fenwick & West LLP.
23.1
Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm.
23.2
Consent of Fenwick & West LLP (included in Exhibit 5.1).
24.1
Power of Attorney (see page II-4 of this Registration Statement).
Item 9.
Undertakings
.
(a) The undersigned Registrant hereby undertakes:
(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 this Registration Statement. Notwithstanding the foregoing, any increase or decrease
in 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 Commission pursuant to
Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20
percent change in the maximum aggregate offering price set forth in the "Calculation of
Registration Fee" table in the effective Registration Statement; and (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
, that clauses (1)(i) and (1)(ii) above do not apply if the information required to be
included in a post-effective amendment by those clauses is contained in periodic reports filed with
or furnished to the Commission by the Registrant pursuant to Section 13 or Section 15(d) of the
Exchange Act that are incorporated by reference in this Registration Statement.
(2) That, for the purpose of determining any liability under the Securities Act, 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 that remain unsold at the termination of the offering.
(b) 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 Section 15(d) of the Exchange Act (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference into this 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.
(c) Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Commission such indemnification is against public policy as expressed in the Securities Act and is,
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-3
Table of Contents
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 of 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 Cupertino, State of California, on February 14, 2008.
ARCSIGHT, INC.
By:
/s/
Robert W. Shaw
Robert W. Shaw
Chief Executive Officer and
Chairman of the Board of Directors
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS
, that each person whose signature appears below hereby
constitutes and appoints Robert W. Shaw and Stewart Grierson, and each of them acting individually,
as his or her true and lawful attorneys-in-fact and agents with full power of substitution, for him
or her in any and all capacities, to sign any 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, hereby ratifying and confirming all that each of said
attorneys-in-fact, or any substitute, may do or cause to be done by virtue hereof. This Power of
Attorney may be signed in any number of counterparts, each of which when so executed and delivered
shall be deemed an original, and such counterparts shall together constitute one and the same
instrument.
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/
Robert W. Shaw
Robert W. Shaw
Chief Executive Officer and
Chairman of
the Board of Directors
(Principal Executive Officer)
February 14, 2008
/s/
Stewart Grierson
Stewart Grierson
Chief Financial Officer
(Principal Accounting
and Financial Officer)
February 14, 2008
/s/
Sandra Bergeron
Sandra Bergeron
Director
February 14, 2008
/s/
William P. Crowell
William P. Crowell
Director
February 14, 2008
/s/
E. Stanton McKee, Jr.
E. Stanton McKee, Jr.
Director
February 14, 2008
II-4
Table of Contents
Signature
Title
Date
/s/
Craig Ramsey
Craig Ramsey
Director
February 14, 2008
/s/
Scott A. Ryles
Scott A. Ryles
Director
February 14, 2008
/s/
Ted Schlein
Ted Schlein
Director
February 14, 2008
/s/
Ernest von Simson
Ernest von Simson
Director
February 14, 2008
II-5
Table of Contents
EXHIBIT INDEX
Exhibit
Number
Exhibit Title
4.1
Form of Restated Certificate of Incorporation of the Registrant (incorporated herein by
reference to Exhibit 3.2 of the Form S-1).
4.2
Form Amended and Restated Bylaws of the Registrant (incorporated herein by reference to
Exhibit 3.4 of the Form S-1).
4.3
Form of Registrant's common stock certificate (incorporated herein by reference to Exhibit 4.1
of the Form S-1).
4.4
Amended and Restated Investors' Rights Agreement, dated as of October 24, 2002, between the
Registrant and certain security holders of the Registrant (incorporated herein by reference to
Exhibit 4.2 of the Form S-1).
4.5
2000 Stock Incentive Plan (incorporated herein by reference to Exhibit 10.2 of the Form S-1).
4.6
2002 Stock Plan, as amended (incorporated herein by reference to Exhibit 10.4 of the Form S-1).
4.7
2007 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.6 of the Form S-1).
4.8
2007 Employee Stock Purchase Plan (incorporated herein by reference to Exhibit 10.8 of the
Form S-1).
5.1
Opinion of Fenwick & West LLP.
23.1
Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm.
23.2
Consent of Fenwick & West LLP (included in Exhibit 5.1).
24.1
Power of Attorney (see page II-4 of this Registration Statement).