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

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=supportNote 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.

    Version

    Product

    SR_Level

    Service branch

    6.0.600
    1.
    22xxx

    Windows Server 2008

    SP1

    LDR

    6.0.600
    2.
    22xxx

    Windows Server 2008

    SP2

    LDR

  • 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

File name

File version

File size

Date

Time

Platform

Gpprefcl.dll

6.0.6001.22670

647,168

14-Apr-2010

17:52

x86

Gpprefcl.dll

6.0.6002.22382

647,168

14-Apr-2010

19:00

x86

For all supported x64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Gpprefcl.dll

6.0.6001.22670

846,336

14-Apr-2010

18:15

x64

Gpprefcl.dll

6.0.6002.22382

846,336

14-Apr-2010

18:57

x64

Gpprefcl.dll

6.0.6001.22670

647,168

14-Apr-2010

17:52

x86

Gpprefcl.dll

6.0.6002.22382

647,168

14-Apr-2010

19:00

x86

For all supported IA-64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Gpprefcl.dll

6.0.6001.22670

1,672,192

14-Apr-2010

17:45

IA-64

Gpprefcl.dll

6.0.6002.22382

1,672,192

14-Apr-2010

18:37

IA-64

Gpprefcl.dll

6.0.6001.22670

647,168

14-Apr-2010

17:52

x86

Gpprefcl.dll

6.0.6002.22382

647,168

14-Apr-2010

19:00

x86

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

File name

Update.mum

File version

Not applicable

File size

2,235

Date (UTC)

15-Apr-2010

Time (UTC)

11:13

Platform

Not applicable

File name

X86_00cfe8272720c2e883c97181d4c56fd7_31bf3856ad364e35_6.0.6002.22382_none_29618daeaedc6b01.manifest

File version

Not applicable

File size

711

Date (UTC)

15-Apr-2010

Time (UTC)

11:13

Platform

Not applicable

File name

X86_3d61e84fc5b3e3d8587007c4e8707b8d_31bf3856ad364e35_6.0.6001.22670_none_a7d33b9a2ab3e56e.manifest

File version

Not applicable

File size

711

Date (UTC)

15-Apr-2010

Time (UTC)

11:13

Platform

Not applicable

File name

X86_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22670_none_37872bc862524906.manifest

File version

Not applicable

File size

106,474

Date (UTC)

15-Apr-2010

Time (UTC)

00:41

Platform

Not applicable

File name

X86_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22382_none_3964ce585f7eecc9.manifest

File version

Not applicable

File size

106,474

Date (UTC)

14-Apr-2010

Time (UTC)

21:32

Platform

Not applicable

Additional files for all supported x64-based versions of Windows Server 2008

File name

Amd64_2c5d1a13c36fba7a9f19da4181a7dda6_31bf3856ad364e35_6.0.6002.22382_none_679d4b70ecc345c6.manifest

File version

Not applicable

File size

1,072

Date (UTC)

15-Apr-2010

Time (UTC)

11:13

Platform

Not applicable

File name

Amd64_956f346fe9f2d3ecc54de3a4d2a829fb_31bf3856ad364e35_6.0.6001.22670_none_2ec3bc380c6f7824.manifest

File version

Not applicable

File size

1,072

Date (UTC)

15-Apr-2010

Time (UTC)

11:13

Platform

Not applicable

File name

Amd64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22670_none_93a5c74c1aafba3c.manifest

File version

Not applicable

File size

106,510

Date (UTC)

15-Apr-2010

Time (UTC)

00:45

Platform

Not applicable

File name

Amd64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22382_none_958369dc17dc5dff.manifest

File version

Not applicable

File size

106,510

Date (UTC)

14-Apr-2010

Time (UTC)

21:19

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,251

Date (UTC)

15-Apr-2010

Time (UTC)

11:13

Platform

Not applicable

File name

Wow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22670_none_9dfa719e4f107c37.manifest

File version

Not applicable

File size

66,987

Date (UTC)

15-Apr-2010

Time (UTC)

00:35

Platform

Not applicable

File name

Wow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22382_none_9fd8142e4c3d1ffa.manifest

File version

Not applicable

File size

66,987

Date (UTC)

14-Apr-2010

Time (UTC)

21:25

Platform

Not applicable

Additional files for all supported IA-64-based versions of Windows Server 2008

File name

Ia64_39b785437b1f566c392e24094b26aaa3_31bf3856ad364e35_6.0.6002.22382_none_b1982e333871e677.manifest

File version

Not applicable

File size

1,070

Date (UTC)

15-Apr-2010

Time (UTC)

11:13

Platform

Not applicable

File name

Ia64_8dfb1fdb19a1ea0d3372ce97c933e123_31bf3856ad364e35_6.0.6001.22670_none_8f54a66c81ce5f02.manifest

File version

Not applicable

File size

1,070

Date (UTC)

15-Apr-2010

Time (UTC)

11:13

Platform

Not applicable

File name

Ia64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22670_none_3788cfbe62505202.manifest

File version

Not applicable

File size

106,492

Date (UTC)

14-Apr-2010

Time (UTC)

21:32

Platform

Not applicable

File name

Ia64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22382_none_3966724e5f7cf5c5.manifest

File version

Not applicable

File size

106,492

Date (UTC)

15-Apr-2010

Time (UTC)

01:48

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,241

Date (UTC)

15-Apr-2010

Time (UTC)

11:13

Platform

Not applicable

File name

Wow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22670_none_9dfa719e4f107c37.manifest

File version

Not applicable

File size

66,987

Date (UTC)

15-Apr-2010

Time (UTC)

00:35

Platform

Not applicable

File name

Wow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22382_none_9fd8142e4c3d1ffa.manifest

File version

Not applicable

File size

66,987

Date (UTC)

14-Apr-2010

Time (UTC)

21:25

Platform

Not applicable

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