Microsoft KB Archive/938135

= A handle leak occurs after you install hotfix 925104 or Windows Server 2003 SP2 on a computer that is running Windows Server 2003 =

Article ID: 938135

Article Last Modified on 10/26/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Enterprise Edition
 * Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
 * Microsoft Windows Server 2003, Standard x64 Edition
 * Microsoft Windows Server 2003, Enterprise x64 Edition
 * Microsoft Windows Server 2003, Datacenter x64 Edition
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
 * Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems

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SYMPTOMS
A handle leak occurs when an application runs on a computer that is running Microsoft Windows Server 2003. The handle count of the application continues to increase. Over time, this handle leak may exhaust system resources and cause performance issues.

This problem occurs if the following conditions are true:  The application accesses the following registry subkey by calling the RegQueryValue function:

 Hotfix 925104 or Windows Server 2003 Service Pack 2 is installed. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

925104 The System log reports many &quot;PerfOS event ID: 2001&quot; errors when you use a Microsoft Windows Server 2003-based computer that has more than 32 processors





CAUSE
This problem occurs because the PerfOS.dll module does not correctly manage open registry handles.



Hotfix information
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only 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 Windows Server 2003 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer 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 Windows Server 2003 Service Pack 1 or Windows Server 2003 Service Pack 2 installed. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

889100 How to obtain the latest service pack for Windows Server 2003

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

Hotfix replacement information
This hotfix replaces hotfix 925104.

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.

Windows Server 2003 with Service Pack 1, Itanium-based versions


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
You can use Task Manager to check the handle count of a running application. To do this, follow these steps:
 * 1) Right-click the task bar, and then click Task Manager.
 * 2) Click the Processes tab.
 * 3) On the View menu, click Select Columns.
 * 4) Click to select the Handle Count check box, and then click OK.
 * 5) On the Processes tab, check the values in the Handles column.

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

Keywords: kbexpertiseinter kbwinserv2003postsp2fix kbbug kbfix kbhotfixserver kbqfe kbpubtypekc KB938135

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