Microsoft KB Archive/843554

= The Lsass.exe process or the Svchost.exe service that hosts the RPCSS may leak memory in Windows Server 2003 =

Article ID: 843554

Article Last Modified on 7/24/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Enterprise x64 Edition
 * Microsoft Windows Server 2003, 64-Bit Datacenter Edition
 * Microsoft Windows XP Professional for Itanium-based systems

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SYMPTOMS
In Microsoft Windows Server 2003, the following problems may occur:
 * The Local Security Authority Service (Lsass.exe) process may leak memory.
 * The Svchost.exe service that hosts the Remote Procedure Call Server Service (RPCSS) may leak memory.

This behavior appears in System Monitor as an increase in the private bytes counter.

Note To monitor the Svchost.exe process that host the RPCSS and the Lsass.exe process, see the Process\Private Bytes and the Process\Virtual Bytes performance counters for each process in System Monitor.



CAUSE
This problem occurs when the local procedure call (LPC) fails to correctly clean up the client-side security context cache of items that have expired.



RESOLUTION
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:

http://go.microsoft.com/?linkid=6294451

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:

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

Prerequisites
No prerequisites are required.

Restart requirement
You do not have to restart your 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 tool in Control Panel.

Windows Server 2003 32-bit versions
  Date         Time   Version       Size       File name -  22-Jun-2004  19:56  5.2.3790.161  1,188,352  Ole32.dll 22-Jun-2004 19:56  5.2.3790.185     26,112  Rpcproxy.dll 22-Jun-2004 19:56  5.2.3790.185    659,968  Rpcrt4.dll 22-Jun-2004 19:56  5.2.3790.161    293,888  Rpcss.dll

Windows Server 2003 64-bit versions
  Date         Time   Version       Size       File name     Platform ---  22-Jun-2004  18:57  5.2.3790.161  3,565,056  Ole32.dll     IA-64 22-Jun-2004 18:57  5.2.3790.185     73,216  Rpcproxy.dll  IA-64 22-Jun-2004 18:57  5.2.3790.185  2,150,912  Rpcrt4.dll    IA-64 22-Jun-2004 18:57  5.2.3790.161    686,080  Rpcss.dll     IA-64 22-Jun-2004 18:57  5.2.3790.161  1,188,352  Wole32.dll    x86 22-Jun-2004 18:57  5.2.3790.185     26,112  Wrpcproxy.dll x86 22-Jun-2004 18:57  5.2.3790.185    544,256  Wrpcrt4.dll   x86



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For additional information about the standard terminology that is used to describe Microsoft 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

Keywords: kbqfe kbhotfixserver kbwinserv2003presp1fix kbbug kbfix kbprb KB843554

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