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</HEAD><BODY id=38 bgColor=#ffffff>
<DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>UNITED
STATES</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>SECURITIES
AND EXCHANGE COMMISSION</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>Washington,
D.C. 20549</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>FORM
8-K</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>CURRENT
REPORT</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>Pursuant
to Section 13 or 15(d) of the Securities Exchange Act of
1934</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Date of
Report (date of earliest event reported):</FONT><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>
March 11, 2005</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>Administaff,
Inc.</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Exact
name of registrant as specified in its charter)</FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR>
<DIV align=left>
<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>
  <TR>
    <TD style="BORDER-BOTTOM: medium none" vAlign=top align=left width="33%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=center><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>Delaware</STRONG></FONT></DIV></TD>
    <TD style="BORDER-BOTTOM: medium none" vAlign=top align=left width="33%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=center><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>1-13998</STRONG></FONT></DIV></TD>
    <TD style="BORDER-BOTTOM: medium none" vAlign=top align=left width="33%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=center><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>76-0479645</STRONG></FONT></DIV></TD></TR>
  <TR>
    <TD style="BORDER-BOTTOM: medium none" vAlign=top align=left width="33%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=center><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(State
      or other jurisdiction of</FONT></DIV></TD>
    <TD style="BORDER-BOTTOM: medium none" vAlign=top align=left width="33%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=center><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Commission</FONT></DIV></TD>
    <TD style="BORDER-BOTTOM: medium none" vAlign=top align=left width="33%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=center><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(I.R.S.
      Employer</FONT></DIV></TD></TR>
  <TR>
    <TD style="BORDER-BOTTOM: medium none" vAlign=top align=left width="33%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=center><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">incorporation)</FONT></DIV></TD>
    <TD style="BORDER-BOTTOM: medium none" vAlign=top align=left width="33%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=center><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">File
      Number)</FONT></DIV></TD>
    <TD style="BORDER-BOTTOM: medium none" vAlign=top align=left width="33%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=center><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Identification
      No.)</FONT></DIV></TD></TR></TABLE></DIV>
<DIV></DIV></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG></STRONG></FONT>&nbsp;</DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>19001
Crescent Springs Drive</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>Kingwood,
Texas 77339</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Address
of principal executive offices and zip code)</FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center>&nbsp;</DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Registrant&#8217;s
telephone number, including area code: </FONT><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>(281)
358-8986</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Check the
appropriate box below if the Form 8-K filing is intended to simultaneously
satisfy the filing obligation of the registrant under any of the following
provisions (see General Instruction A.2 below):</FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><FONT
face=Wingdings>o</FONT> Written communications pursuant to Rule 425 under the
Securities Act (17 CFR 230.425)</FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><FONT
face=Wingdings>o</FONT> Soliciting material pursuant to Rule 14a-12 under the
Exchange Act (17 CFR 240.14a-12)</FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><FONT
face=Wingdings>o</FONT> Pre-commencement communications pursuant to Rule
14d-2(b) under The Exchange Act (17 CFR 240.14d-2(b))</FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><FONT
face=Wingdings>o</FONT> Pre-commencement communications pursuant to Rule
13e-4(c) under The Exchange Act (17 CFR 240.13e-4(c))</FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0.5pt"
align=left>&nbsp;</DIV>
<DIV id=PGBRK style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
<DIV id=FTR>
<DIV id=GLFTR style="WIDTH: 100%" align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 8pt; COLOR: #000000; FONT-FAMILY: Times New Roman"></FONT></DIV></DIV>
<DIV id=PN style="PAGE-BREAK-AFTER: always">
<DIV style="WIDTH: 100%; TEXT-ALIGN: center"><FONT
style="DISPLAY: inline; FONT-SIZE: 8pt" face="Times New Roman"></FONT></DIV>
<DIV style="WIDTH: 100%; TEXT-ALIGN: center">
<HR color=#000000 noShade SIZE=2>
</DIV></DIV>
<DIV id=HDR>
<DIV id=GLHDR style="WIDTH: 100%" align=right><FONT
style="DISPLAY: inline; FONT-SIZE: 8pt; COLOR: #000000; FONT-FAMILY: Times New Roman"></FONT></DIV></DIV></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0.5pt"
align=left>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Administaff,
Inc.</FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Page
2</FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT size=2></FONT>&nbsp;</DIV></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>Item
1.01.&nbsp;&nbsp;&nbsp; Entry into a Material Definitive
Agreement</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=justify><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=justify><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">On March
11, 2005, Administaff, Inc. entered into a new three-year arrangement with
UnitedHealthcare for health benefit coverages. A copy of the press release
issued by Administaff on March 14, 2005 is furnished as Exhibit 99.1 hereto and
incorporated by reference. </FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=justify><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>Item
9.01&nbsp;&nbsp;&nbsp; Financial Statements and Exhibits</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT size=2></FONT>&nbsp;</DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 27pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT size=2>(c) <FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Exhibits</FONT></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 27pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 45pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"></FONT>&nbsp;</DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 27pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.1 &#8212;
Press release issued by Administaff, Inc. on March 14, 2005.</FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 27pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT size=2></FONT>&nbsp;</DIV></DIV></DIV>
<DIV id=PGBRK style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
<DIV id=FTR>
<DIV id=GLFTR
style="MARGIN-LEFT: 0pt; WIDTH: 100%; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(more)</FONT></DIV></DIV>
<DIV id=PN style="PAGE-BREAK-AFTER: always">
<DIV style="WIDTH: 100%; TEXT-ALIGN: center"><FONT
style="DISPLAY: inline; FONT-SIZE: 8pt" face="Times New Roman"></FONT></DIV>
<DIV style="WIDTH: 100%; TEXT-ALIGN: center">
<HR color=#000000 noShade SIZE=2>
</DIV></DIV>
<DIV id=HDR>
<DIV id=GLHDR style="WIDTH: 100%" align=right><FONT
style="DISPLAY: inline; FONT-SIZE: 8pt; COLOR: #000000; FONT-FAMILY: Times New Roman"></FONT></DIV></DIV></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Administaff,
Inc.</FONT></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Page
3</FONT></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>SIGNATURES</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT id=TAB1 style="MARGIN-LEFT: 36pt"></FONT><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant
to the requirements of the Securities Exchange Act of 1934, the registrant has
duly caused this report to be signed on its behalf by the undersigned hereunto
duly authorized.</FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left>&nbsp;</DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left>
<TABLE cellSpacing=0 cellPadding=0 width="100%" align=center bgColor=#ffffff
border=0>
  <TR vAlign=top bgColor=#ffffff>
    <TD width="50%"><FONT face="Times New Roman" size=2>&nbsp;</FONT></TD>
    <TD width="1%"><FONT face="Times New Roman" size=2>&nbsp;</FONT></TD>
    <TD width="49%"><FONT face="Times New Roman" size=2>&nbsp;</FONT></TD></TR>
  <TR vAlign=top bgColor=#ffffff>
    <TD><FONT face="Times New Roman" size=2>&nbsp;</FONT></TD>
    <TD colSpan=2><FONT face="Times New Roman" size=2>ADMINISTAFF,
    INC.</FONT></TD></TR>
  <TR vAlign=top bgColor=#ffffff>
    <TD><FONT face="Times New Roman" size=2>&nbsp;<BR>&nbsp;</FONT></TD>
    <TD><FONT face="Times New Roman" size=2>&nbsp;<BR>&nbsp;</FONT></TD>
    <TD><FONT face="Times New Roman" size=2>&nbsp;<BR>&nbsp;</FONT></TD></TR>
  <TR vAlign=top bgColor=#ffffff>
    <TD><FONT face="Times New Roman" size=2></FONT></TD>
    <TD><FONT face="Times New Roman" size=2>By:&nbsp;&nbsp;</FONT></TD>
    <TD><FONT face="Times New Roman" size=2><EM>/s/ John H. Spurgin,
      II</EM></FONT></TD></TR>
  <TR vAlign=top bgColor=#ffffff>
    <TD colSpan=2><FONT face="Times New Roman" size=1>&nbsp;</FONT></TD>
    <TD align=left>
      <HR align=left width="80%" color=#000000 noShade SIZE=2>
      <FONT size=2>John H. Spurgin, II</FONT></TD></TR>
  <TR vAlign=top bgColor=#ffffff>
    <TD colSpan=2><FONT face="Times New Roman" size=2>&nbsp;</FONT></TD>
    <TD><FONT face="Times New Roman" size=2>Sr. Vice President, Legal, General
      Counsel and Secretary</FONT></TD></TR></TABLE></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT size=2></FONT>&nbsp;</DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT size=2>Date: March 16, 2005</FONT><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=center><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>EXHIBIT
INDEX</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV align=center>
<TABLE cellSpacing=0 cellPadding=0 width="100%" bgColor=#ffffff>
  <TR bgColor=#ffffff>
    <TD width="7%"><U><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>Exhibit
      </STRONG></FONT><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>No.</STRONG></FONT></U><FONT
      id=TAB2 style="COLOR: black; LETTER-SPACING: 37.75pt">&nbsp;</FONT></TD>
    <TD width="93%"><STRONG><U><FONT
  size=2>Description</FONT></U></STRONG></TD></TR>
  <TR bgColor=#ffffff>
    <TD width="7%">&nbsp;<FONT size=2>99.1</FONT></TD>
    <TD width="93%"><FONT size=2>&#8212;</FONT><FONT id=TAB2
      style="COLOR: black; LETTER-SPACING: 37.75pt">&nbsp;</FONT><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Press
      release issued by Administaff, Inc. on March 14,
2005.</FONT></TD></TR></TABLE></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><STRONG><U><FONT size=2></FONT></U></STRONG>&nbsp;</DIV>
<DIV id=PGBRK style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
<DIV id=FTR>
<DIV id=GLFTR
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{"company-data": {"conformed-name": "ADMINISTAFF INC \\DE\\", "cik": "0001000753", "assigned-sic": "7363", "irs-number": "760479645", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-13998", "film-number": "05686152"}, "business-address": {"street1": "19001 CRESCENT SPRINGS DR", "city": "KINGWOOD", "state": "TX", "zip": "77339", "phone": "7133588986"}, "mail-address": {"street1": "19001 CRESCENT SPRINGS DR", "city": "KINGWOOD", "state": "TX", "zip": "77339"}}
UNITED
STATES
SECURITIES
AND EXCHANGE COMMISSION
Washington,
D.C. 20549
FORM
8-K
CURRENT
REPORT
Pursuant
to Section 13 or 15(d) of the Securities Exchange Act of
1934
Date of
Report (date of earliest event reported):
March 11, 2005
Administaff,
Inc.
(Exact
name of registrant as specified in its charter)
Delaware
1-13998
76-0479645
(State
      or other jurisdiction of
(Commission
(I.R.S.
      Employer
incorporation)
File
      Number)
Identification
      No.)
19001
Crescent Springs Drive
Kingwood,
Texas 77339
(Address
of principal executive offices and zip code)
Registrant's
telephone number, including area code:
(281)
358-8986
Check the
appropriate box below if the Form 8-K filing is intended to simultaneously
satisfy the filing obligation of the registrant under any of the following
provisions (see General Instruction A.2 below):
o
Written communications pursuant to Rule 425 under the
Securities Act (17 CFR 230.425)
o
Soliciting material pursuant to Rule 14a-12 under the
Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement communications pursuant to Rule
14d-2(b) under The Exchange Act (17 CFR 240.14d-2(b))
o
Pre-commencement communications pursuant to Rule
13e-4(c) under The Exchange Act (17 CFR 240.13e-4(c))
Administaff,
Inc.
Page
2
Item
1.01.    Entry into a Material Definitive
Agreement
On March
11, 2005, Administaff, Inc. entered into a new three-year arrangement with
UnitedHealthcare for health benefit coverages. A copy of the press release
issued by Administaff on March 14, 2005 is furnished as Exhibit 99.1 hereto and
incorporated by reference.
Item
9.01    Financial Statements and Exhibits
(c)
Exhibits
99.1 —
Press release issued by Administaff, Inc. on March 14, 2005.
(more)
Administaff,
Inc.
Page
3
SIGNATURES
Pursuant
to the requirements of the Securities Exchange Act of 1934, the registrant has
duly caused this report to be signed on its behalf by the undersigned hereunto
duly authorized.
ADMINISTAFF,
    INC.
By:
/s/ John H. Spurgin,
      II
John H. Spurgin, II
Sr. Vice President, Legal, General
      Counsel and Secretary
Date: March 16, 2005
EXHIBIT
INDEX
Exhibit
No.
Description
99.1
—
Press
      release issued by Administaff, Inc. on March 14,
2005.
(more)