Microsoft KB Archive/931543

From BetaArchive Wiki

Article ID: 931543

Article Last Modified on 10/11/2007


  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition


On a computer that is running an x64-based version of Microsoft Windows Server 2003, the Lsass.exe process may stop unexpectedly. Then, the computer restarts. This problem occurs when the computer is under a heavy load.

Typically, this problem occurs on a computer that is running Microsoft Exchange Server 2007. For example, you may experience this problem when you try to stop the Microsoft Exchange Information Store service after the computer has been under a heavy load for several hours. However, this problem is not specific to Exchange 2007. This problem may occur under other circumstances.


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:


No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

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 item in Control Panel.

File name File version File size Date Time Platform SP requirement Service branch
Lsasrv.dll 5.2.3790.2865 1,566,720 21-Jan-2007 17:37 x64 SP1 SP1QFE
Lsasrv.dll 5.2.3790.4007 1,567,232 21-Jan-2007 17:43 x64 SP2 SP2QFE


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


For more information about the terms that are used to describe software updates, click the following article number to view the article in the Microsoft Knowledge Base:

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

Additional query words: lsass crash reboot

Keywords: kbbug kbfix kbqfe kbpubtypekc kbexpertiseinter kbhotfixserver kbwinserv2003postsp2fix KB931543