Microsoft KB Archive/330259

= Intermittent Program Unresponsiveness Occurs When You Use Performance Monitoring =

Article ID: 330259

Article Last Modified on 2/19/2007

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server

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This article was previously published under Q330259



SYMPTOMS
You may experience one or more of the following symptoms intermittently when you use a third-party program that loads performance-monitoring extension dynamic link library (DLL) files on your Windows 2000-based or Windows XP-based computer:
 * Memory leaks
 * Slow performance or a program stops responding
 * Persistent event logging
 * Program unresponsiveness or crashes



CAUSE
This problem may occur because the Performance Monitor component (Pdh.dll) generates &quot;Global&quot; calls to the RegQueryValueExW function that causes all performance counters to be loaded, even though only specific objects may be requested by the running program. This problem may cause one or more of the symptoms if multiple extension DLL files that are incompatible or problematic are loaded at the same time.



Service Pack Information
To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. 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

Hotfix Information
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 Windows 2000 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/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 typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The Global version of this fix 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  Platform ---  03-Dec-2002  15:18  5.0.2195.6149  151,824  Pdh.dll    x86

Windows XP
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.

To resolve this problem, 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/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.

The Global version of this fix should have the following file attributes or later:   Date         Time   Version        Size     File name  Platform ---  03-Dec-2002  16:36  5.1.2600.1146  254,464  Pdh.dll    x86



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft Windows 2000 Service Pack 4.



MORE INFORMATION
For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:

265173 The Datacenter Program and Windows 2000 Datacenter Server Product

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

310419 Computer Speed and Performance May Decrease

Additional query words: 1008

Keywords: kbhotfixserver kbqfe kbsysadmin kbwin2ksp4fix kbbug kbfix kbwin2000presp4fix KB330259

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