Microsoft KB Archive/835517

= A memory leak occurs after you install Microsoft Windows 2000 Server Service Pack 4 =

Article ID: 835517

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Service Pack 3
 * Microsoft Windows 2000 Service Pack 4

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SYMPTOMS
After you install Microsoft Windows 2000 Service Pack 4 (SP4), a memory leak condition may occur on a server that also has Microsoft Operations Manager (MOM) installed. When you try to log on to the server computer, you may experience one or more memory errors. Additionally, the server may stop responding (hang), and event ID 2020 may appear in the system event log.



CAUSE
This problem may occur if programs generate remote procedure call (RPC) network traffic. This problem may affect MOM because MOM generates RPC traffic when it communicates with managed agents.



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, 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
You must have Windows 2000 SP4 installed to apply this hotfix. If MOM 2000 SP1 is installed on the server, stop the MOM Service (Onepoint) before you apply this hotfix.

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

260910 How to obtain the latest Windows 2000 service pack

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix replaces Knowledge Base article 825237.

File information
The English version of this has the file attributes (or later) 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.   Date         Time   Version         Size       File name ---  02-Feb-2004  19:59  5.0.2195.6824      42,256  Basesrv.dll 21-Sep-2003 00:45  5.0.2195.6824     236,304  Cmd.exe 02-Feb-2004 19:59  5.0.2195.6882     222,992  Gdi32.dll 02-Feb-2004 19:59  5.0.2195.6894     711,952  Kernel32.dll 02-Feb-2004 19:59  5.0.2195.6824      54,032  Mpr.dll 02-Feb-2004 19:59  5.0.2195.6895     334,608  Msgina.dll 02-Feb-2004 19:59  5.0.2195.6892      90,264  Rdpwd.sys 09-Jan-2004 01:41  5.0.2195.6888   5,854,720  Sp3res.dll 02-Feb-2004 19:59  5.0.2195.6891     380,688  User32.dll 02-Feb-2004 19:59  5.0.2195.6891     391,952  Userenv.dll 21-Jan-2004 19:48  5.0.2195.6892   1,630,256  Win32k.sys 11-Nov-2003 00:29  5.0.2195.6873     182,032  Winlogon.exe 02-Feb-2004 19:59  5.0.2195.6884     243,984  Winsrv.dll



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



MORE INFORMATION
Although this memory leak problem is known to occur with MOM, other programs that generate RPC traffic may also trigger this problem. You may experience this problem after you install Windows 2000 SP4 even if MOM is not installed or otherwise implicated.

The change in the Userenv.dll file is to fix a token leak issue in the Windows 2000 SP4 Services.exe process. The leak occurs whenever a thread that is executing some of the userenv functions does not impersonate the user for some reason.

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

816915 New file naming schema for Microsoft Windows software update packages

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

Additional query words: rpc, crash, hang,

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe kbwin2000presp5fix KB835517

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