A Svchost.exe handle leak occurs in Windows Server 2008 when Group Policy preference settings are applied

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Article ID: 958089 - View products that this article applies to.
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SYMPTOMS

Consider this scenario:
  • You have a computer that is running Windows Server 2008.
  • Some Group Policy preference settings are applied or updated on the computer.

    Note
    The Group Policy client service runs in an instance of the Svchost.exe process.
In this scenario, the handle count for an instance of the Svchost.exe process keeps increasing. After a while, some applications or services that are running on the computer may stop working.

CAUSE

This issue occurs because the allocated handles are not closed in the process when Group Policy preference settings are applied or updated.

RESOLUTION

Note This hotfix applies to only computer that are running Windows Server 2008. If you experience the same issue on a computer that is running Windows Server 2003, Windows XP, or Windows Vista, install hotfix 974266 to resolve the issue.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:
974266 Group Policy Preferences Client-Side Extension Hotfix Rollup

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:
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.

Prerequisites

To apply this hotfix, you must be running Windows Server 2008 or Windows Server 2008 Service Pack 2 (SP2).

For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
968849 How to obtain the latest service pack for Windows Server 2008

Registry information

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

Restart requirement

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

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows Server 2008 file information notes
  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.0.600 1 . 22xxxWindows Server 2008SP1LDR
    6.0.600 2 . 22xxxWindows Server 2008SP2LDR
  • Service Pack 1 is integrated into the release version of Windows Server 2008.
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Gpprefcl.dll6.0.6001.22670647,16814-Apr-201017:52x86
Gpprefcl.dll6.0.6002.22382647,16814-Apr-201019:00x86
For all supported x64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Gpprefcl.dll6.0.6001.22670846,33614-Apr-201018:15x64
Gpprefcl.dll6.0.6002.22382846,33614-Apr-201018:57x64
Gpprefcl.dll6.0.6001.22670647,16814-Apr-201017:52x86
Gpprefcl.dll6.0.6002.22382647,16814-Apr-201019:00x86
For all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Gpprefcl.dll6.0.6001.226701,672,19214-Apr-201017:45IA-64
Gpprefcl.dll6.0.6002.223821,672,19214-Apr-201018:37IA-64
Gpprefcl.dll6.0.6001.22670647,16814-Apr-201017:52x86
Gpprefcl.dll6.0.6002.22382647,16814-Apr-201019:00x86

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 software update terminology, 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

Additional file information

Additional file information for Windows Server 2008

Additional files for all supported x86-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameUpdate.mum
File versionNot applicable
File size2,235
Date (UTC)15-Apr-2010
Time (UTC)11:13
PlatformNot applicable
File nameX86_00cfe8272720c2e883c97181d4c56fd7_31bf3856ad364e35_6.0.6002.22382_none_29618daeaedc6b01.manifest
File versionNot applicable
File size711
Date (UTC)15-Apr-2010
Time (UTC)11:13
PlatformNot applicable
File nameX86_3d61e84fc5b3e3d8587007c4e8707b8d_31bf3856ad364e35_6.0.6001.22670_none_a7d33b9a2ab3e56e.manifest
File versionNot applicable
File size711
Date (UTC)15-Apr-2010
Time (UTC)11:13
PlatformNot applicable
File nameX86_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22670_none_37872bc862524906.manifest
File versionNot applicable
File size106,474
Date (UTC)15-Apr-2010
Time (UTC)00:41
PlatformNot applicable
File nameX86_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22382_none_3964ce585f7eecc9.manifest
File versionNot applicable
File size106,474
Date (UTC)14-Apr-2010
Time (UTC)21:32
PlatformNot applicable
Additional files for all supported x64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameAmd64_2c5d1a13c36fba7a9f19da4181a7dda6_31bf3856ad364e35_6.0.6002.22382_none_679d4b70ecc345c6.manifest
File versionNot applicable
File size1,072
Date (UTC)15-Apr-2010
Time (UTC)11:13
PlatformNot applicable
File nameAmd64_956f346fe9f2d3ecc54de3a4d2a829fb_31bf3856ad364e35_6.0.6001.22670_none_2ec3bc380c6f7824.manifest
File versionNot applicable
File size1,072
Date (UTC)15-Apr-2010
Time (UTC)11:13
PlatformNot applicable
File nameAmd64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22670_none_93a5c74c1aafba3c.manifest
File versionNot applicable
File size106,510
Date (UTC)15-Apr-2010
Time (UTC)00:45
PlatformNot applicable
File nameAmd64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22382_none_958369dc17dc5dff.manifest
File versionNot applicable
File size106,510
Date (UTC)14-Apr-2010
Time (UTC)21:19
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,251
Date (UTC)15-Apr-2010
Time (UTC)11:13
PlatformNot applicable
File nameWow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22670_none_9dfa719e4f107c37.manifest
File versionNot applicable
File size66,987
Date (UTC)15-Apr-2010
Time (UTC)00:35
PlatformNot applicable
File nameWow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22382_none_9fd8142e4c3d1ffa.manifest
File versionNot applicable
File size66,987
Date (UTC)14-Apr-2010
Time (UTC)21:25
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_39b785437b1f566c392e24094b26aaa3_31bf3856ad364e35_6.0.6002.22382_none_b1982e333871e677.manifest
File versionNot applicable
File size1,070
Date (UTC)15-Apr-2010
Time (UTC)11:13
PlatformNot applicable
File nameIa64_8dfb1fdb19a1ea0d3372ce97c933e123_31bf3856ad364e35_6.0.6001.22670_none_8f54a66c81ce5f02.manifest
File versionNot applicable
File size1,070
Date (UTC)15-Apr-2010
Time (UTC)11:13
PlatformNot applicable
File nameIa64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22670_none_3788cfbe62505202.manifest
File versionNot applicable
File size106,492
Date (UTC)14-Apr-2010
Time (UTC)21:32
PlatformNot applicable
File nameIa64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22382_none_3966724e5f7cf5c5.manifest
File versionNot applicable
File size106,492
Date (UTC)15-Apr-2010
Time (UTC)01:48
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,241
Date (UTC)15-Apr-2010
Time (UTC)11:13
PlatformNot applicable
File nameWow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22670_none_9dfa719e4f107c37.manifest
File versionNot applicable
File size66,987
Date (UTC)15-Apr-2010
Time (UTC)00:35
PlatformNot applicable
File nameWow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22382_none_9fd8142e4c3d1ffa.manifest
File versionNot applicable
File size66,987
Date (UTC)14-Apr-2010
Time (UTC)21:25
PlatformNot applicable

Properties

Article ID: 958089 - Last Review: June 13, 2010 - Revision: 3.0
APPLIES TO
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 Standard
  • Windows Server 2008 Standard without Hyper-V
  • Windows Web Server 2008
  • Windows Server 2008 for Itanium-Based Systems
Keywords: 
kbexpertiseinter kbfix kbhotfixserver kbqfe kbautohotfix kbsurveynew kbprb KB958089

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