Access Violation Occurs When Verifusr.dll Calls CancelCookie (300369)


The information in this article applies to:

  • Microsoft Site Server 3.0
This article was previously published under Q300369

SYMPTOMS

When Verifusr.dll calls the CancelCookie method, you may receive an access violation, and Microsoft Internet Information Server (IIS) may fail. The Inetinfo.exe or Dllhost.exe process fails with an access violation, and a Dr. Watson (DrWtsn32.exe) error is logged for this failure.

CAUSE

The reference to a null pointer results from a thread synchronization problem under stress.

WORKAROUND

To work around this problem, prevent the use of the thread synchronization functionality.

RESOLUTION

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Site Server service pack that contains this hotfix.

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

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

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 typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later: 
   Date        Time   Version     Size    File name     Platform
   -------------------------------------------------------------
   11-Jun-2001 08:14  7.0.1318.0  50,096  Verifusr.dll  x86

STATUS

Microsoft has confirmed that this is a problem in Site Server 3.0.
Modification Type:MinorLast Reviewed:10/6/2005
Keywords:kbHotfixServer kbQFE kbbug kbfix kbQFE KB300369
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