A memory leak may occur when an application uses the Refresh method of the IWbemRefresher interface on a Windows Vista-based computer or on a Windows Server 2008-based computer

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Article ID: 949700 - View products that this article applies to.
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SYMPTOMS

On a Windows Vista-based computer or on a Windows Server 2008-based computer, when you run an application that uses the Refresh method of the IWbemRefresher interface, a memory leak may occur.

After the application runs for several days, the computer may become unresponsive. In this case, you have to restart the computer.

Additionally, if you use system performance monitor tool (Perfmon.exe) to monitor the Private Bytes counter of the application, you may notice that the private bytes increase quickly.

RESOLUTION

Hotfix information

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

Prerequisites

No prerequisites are required.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

Registry information

To use this hotfix, you do not have to make any changes to the registry.

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 Vista, x86-based versions and Windows Server 2008, x86-based versions
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File nameFile versionFile sizeDateTimePlatform
Wmiperfclass.dll6.0.6000.2078690,62406-Mar-200804:22x86
Wmiperfinst.dll6.0.6000.2078646,59206-Mar-200804:22x86
Wmiperfclass.dll6.0.6001.2213091,13606-Mar-200804:16x86
Wmiperfinst.dll6.0.6001.2213047,10406-Mar-200804:16x86
Windows Vista, x64-based versions and Windows Server 2008, x64-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Wmiperfclass.dll6.0.6000.20786136,70406-Mar-200804:26x64
Wmiperfinst.dll6.0.6000.2078662,46406-Mar-200804:26x64
Wmiperfclass.dll6.0.6001.22130137,21606-Mar-200804:51x64
Wmiperfinst.dll6.0.6001.2213062,97606-Mar-200804:51x64
Windows Server 2008, Itanium-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Wmiperfclass.dll6.0.6001.22130290,81606-Mar-200804:36IA-64
Wmiperfinst.dll6.0.6001.22130147,45606-Mar-200804:36IA-64

STATUS

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

MORE INFORMATION

For more information about the Refresh method of the IWbemRefresher interface, visit the following Microsoft Web site:
http://msdn2.microsoft.com/en-us/library/aa392092(vs.85).aspx
For more information, 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

Properties

Article ID: 949700 - Last Review: October 8, 2011 - Revision: 3.0
APPLIES TO
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Ultimate
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Standard
  • Windows Web Server 2008
Keywords: 
kbautohotfix kbexpertiseadvanced kbfix kbqfe kbHotfixServer KB949700

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