Internet Security and Acceleration Server 2004 stops responding or performs slowly after you configure a Web listener to use OWA forms-based authentication (897717)


The information in this article applies to:

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

SYMPTOMS

Microsoft Internet Security and Acceleration (ISA) Server 2004 may stop responding or may run slowly. This symptom occurs after you configure a Web listener in ISA Server 2004 to use Microsoft Outlook Web Access (OWA) forms-based authentication.

CAUSE

This problem occurs because the OWA forms-based filter leaks handles. Every successful log on the OWA forms-based filter leaks 8 handles. Additionally, the OWA-forms based filter leaks some handles for every subsequent user action. For example, the OWA-forms based filter leaks some handles if a user opens messages and moves between folders.

RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Internet Security and Acceleration Server 2004. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

891024 How to obtain the latest ISA Server 2004 service pack

Hotfix Information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next ISA Server 2004 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

To apply this hotfix, you must have ISA 2004 Service Pack 1 installed.

Restart requirement

You do not have to restart the computer after you apply this hotfix. However, you must restart the Microsoft Firewall service.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

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 tool in Control Panel.ISA Server 2004, Enterprise Edition
 Date Time Version Size File name
 ---------------------------------------------------------------
 28-Apr-2005 05:59 4.0.3440.264 147,736 Cookieauthfilter.dll
ISA Server 2004, Standard Edition
 Date Time Version Size File name
 ---------------------------------------------------------------
 21-Apr-2005 09:18 4.0.2163.264 150,288 Cookieauthfilter.dll

WORKAROUND

To work around this problem, use one of the following methods:
  • Periodically, restart the Microsoft Firewall service.
  • Do not use OWA forms-based authentication in the Web listener configuration.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Internet Security and Acceleration Server 2004 Service Pack 2.

MORE INFORMATION

For more information about how to install ISA Server 2004 hotfixes and updates, click the following article number to view the article in the Microsoft Knowledge Base:

885957 How to install ISA Server hotfixes and updates

Modification Type:MinorLast Reviewed:10/12/2006
Keywords:kbQFE KBHotfixServer kbISAServ2004STDSP1fix kbISAServ2004EEpreSP1fix kbfix kbbug kbpubtypekc KB897717 kbAudITPRO
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