A managed application has a high number of thread handles and of event handles in the Microsoft .NET Framework 2.0

A managed application has a high number of thread handles and of event handles. This problem occurs if the application creates and releases many managed threads, but the application does not create sufficient memory pressure to trigger the garbage collector of the Microsoft .NET Framework 2.0 very frequently.

For example, this problem may occur in Microsoft System Center Operations Manager 2007 on a computer that is acting as a management server or as an agent. The affected processes may be the Monitoringhost.exe process or the HealthService.exe process.

This problem occurs because the event handle that is associated with managed threads is only released when the finalizer runs.

Note This hotfix changes the common language runtime (CLR) so that the CLR runs the finalizer when a managed thread completes.

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 the problem described in this article. 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: 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.

Prerequisites

You must have .NET Framework 2.0 Service Pack 2 installed to apply this hotfix.

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 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 item in Control Panel.

Windows Server 2003, Windows XP, and Windows 2000, x86-based versions

Windows Server 2003, Windows XP, and Windows 2000, x64-based versions

Windows Server 2003, Windows XP, and Windows 2000, Itanium-based versions

Windows Server 2008 and Windows Vista, x86-based versions

Windows Server 2008 and Windows Vista, x64-based versions

Windows Server 2008 and Windows Vista, Itanium-based versions

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

For more information about Handle v3.42, visit the following Microsoft Web site:For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: