Microsoft KB Archive/927778

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Article ID: 927778

Article Last Modified on 12/4/2007


  • Microsoft Internet Security and Acceleration Server 2004 Standard Edition
  • Microsoft Internet Security and Acceleration Server 2004 Enterprise Edition


You use Microsoft Internet Security and Acceleration (ISA) Server 2004 to publish a Web site that uses forms-based authentication (cookieAuth) to authenticate client computers. After you do this, ISA Server 2004 randomly removes the Set-Cookie command that the Web server sends to client computers. Therefore, cookies from the published Web site are randomly lost.


This problem occurs when the ISA Server 2004 Outlook Web Access forms-based authentication filter renews the encryption key. The Web server's cookie is lost when ISA Server 2004 sets the ISA Server 2004 cadata cookie and the sessionid cookie. ISA Server 2004 sets these cookies after ISA Server 2004 renews its encryption key.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

922878 The actual idle time-out period may be shorter than the value that you configure in the Idle Session Timeout area for OWA forms-based authentication in ISA Server 2004


Hotfix information

A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:


You must have ISA Server 2004 Service Pack 2 (SP2) installed to apply this hotfix. For more information about how to obtain this service pack, see the "More Information" section.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

ISA Server 2004, Standard Edition
File name File version File size Date Time Platform
Comphp.dll 4.0.2165.629 167,272 08-Nov-2006 16:39 x86
Complp.dll 4.0.2165.629 63,848 08-Nov-2006 16:39 x86
Cookieauthfilter.dll 4.0.2165.629 161,640 08-Nov-2006 16:39 x86
Msfpc.dll 4.0.2165.629 330,088 08-Nov-2006 16:39 x86
Msfpccom.dll 4.0.2165.629 3,543,400 08-Nov-2006 16:39 x86
Msfpcui.dll 4.0.2165.629 2,142,568 08-Nov-2006 16:39 x86
Ratlib.dll 4.0.2165.629 39,272 08-Nov-2006 16:39 x86
Msfpcsnp.dll 4.0.2165.629 3,574,632 08-Nov-2006 16:39 x86
Mspadmin.exe 4.0.2165.629 233,320 08-Nov-2006 16:39 x86
Msphlpr.dll 4.0.2165.629 375,656 08-Nov-2006 16:39 x86
Mspmon.dll 4.0.2165.629 52,584 08-Nov-2006 16:39 x86
Mspmsg.dll 4.0.2165.629 230,760 08-Nov-2006 16:39 x86
Rpcfltr.dll 4.0.2165.629 135,528 08-Nov-2006 16:39 x86
Socksflt.dll 4.0.2165.629 100,200 08-Nov-2006 16:39 x86
W3filter.dll 4.0.2165.629 736,616 08-Nov-2006 16:39 x86
Wspsrv.exe 4.0.2165.629 945,512 08-Nov-2006 16:39 x86
Linktranslation.dll 4.0.2165.629 124,776 08-Nov-2006 16:39 x86
Radiusauth.dll 4.0.2165.629 66,408 08-Nov-2006 16:39 x86
ISA Server 2004, Enterprise Edition
File name File version File size Date Time Platform
Comphp.dll 4.0.3443.629 167,784 08-Nov-2006 06:22 x86
Complp.dll 4.0.3443.629 63,336 08-Nov-2006 06:22 x86
Cookieauthfilter.dll 4.0.3443.629 159,592 08-Nov-2006 06:22 x86
Msfpc.dll 4.0.3443.629 377,192 08-Nov-2006 06:22 x86
Msfpccom.dll 4.0.3443.629 5,024,104 08-Nov-2006 06:22 x86
Msfpcui.dll 4.0.3443.629 2,420,584 08-Nov-2006 06:22 x86
Ratlib.dll 4.0.3443.629 40,808 08-Nov-2006 06:22 x86
Msfpcsnp.dll 4.0.3443.629 4,656,488 08-Nov-2006 06:22 x86
Mspadmin.exe 4.0.3443.629 282,984 08-Nov-2006 06:22 x86
Msphlpr.dll 4.0.3443.629 405,352 08-Nov-2006 06:22 x86
Mspmon.dll 4.0.3443.629 52,584 08-Nov-2006 06:22 x86
Mspmsg.dll 4.0.3443.629 254,312 08-Nov-2006 06:22 x86
Rpcfltr.dll 4.0.3443.629 130,920 08-Nov-2006 06:22 x86
Socksflt.dll 4.0.3443.629 95,592 08-Nov-2006 06:22 x86
W3filter.dll 4.0.3443.629 752,488 08-Nov-2006 06:22 x86
Wspsrv.exe 4.0.3443.629 1,067,368 08-Nov-2006 06:22 x86
Linktranslation.dll 4.0.3443.629 123,752 08-Nov-2006 06:22 x86


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

885957 How to install ISA Server hotfixes and updates

891024 How to obtain the latest ISA Server 2004 service pack

Additional query words: cookie cookieAuth

Keywords: kbbug kbfix kbqfe kbpubtypekc kbhotfixserver KB927778