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Article ID: 2300745 - Last Review: November 29, 2010 - Revision: 3.0

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SYMPTOMS

You apply or update some Group Policy preference settings on a computer that is running Windows Server 2008. However, you find that the memory usage of an instance of the Svchost.exe process keeps increasing. After a while, some applications or services that are running on the computer stop working.

Notes
  • The Group Policy client service runs in an instance of the Svchost.exe process.
  • If you use Performance Monitor to monitor the memory usage of the Svchost.exe process when this issue occurs, you find that the value of the Private Bytes counter keeps increasing.

CAUSE

This issue occurs because the allocated memory for the Svchost.exe process is not released when Group Policy preference settings are applied or updated.

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 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 (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  (http://support.microsoft.com/kb/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 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
Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • 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.dll6.0.6001.22770647,16830-Sep-201014:53x86
Gpprefcl.dll6.0.6002.22499647,16806-Oct-201016:31x86
For all supported x64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Gpprefcl.dll6.0.6001.22770846,33630-Sep-201015:39x64
Gpprefcl.dll6.0.6002.22499846,33606-Oct-201016:52x64
Gpprefcl.dll6.0.6001.22770647,16830-Sep-201014:53x86
Gpprefcl.dll6.0.6002.22499647,16806-Oct-201016:31x86
For all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Gpprefcl.dll6.0.6001.227701,672,70430-Sep-201014:57IA-64
Gpprefcl.dll6.0.6002.224991,672,70406-Oct-201016:16IA-64
Gpprefcl.dll6.0.6001.22770647,16830-Sep-201014:53x86
Gpprefcl.dll6.0.6002.22499647,16806-Oct-201016:31x86

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  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates
For more information about handle leak occurs in Svchost.exe, click the following article number to view the article in the Microsoft Knowledge Base:
958089  (http://support.microsoft.com/kb/958089/ ) A Svchost.exe handle leak occurs in Windows Server 2008 when Group Policy preference settings are applied

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 size2,243
Date (UTC)06-Oct-2010
Time (UTC)22:57
PlatformNot applicable
File nameX86_8140d17b1260873f09e3807305bf10af_31bf3856ad364e35_6.0.6001.22770_none_992cfe47d64dbd20.manifest
File versionNot applicable
File size711
Date (UTC)06-Oct-2010
Time (UTC)22:57
PlatformNot applicable
File nameX86_f893c0f94ed3d1b8af5ed4cb9350764d_31bf3856ad364e35_6.0.6002.22499_none_962e3173df463546.manifest
File versionNot applicable
File size711
Date (UTC)06-Oct-2010
Time (UTC)22:57
PlatformNot applicable
File nameX86_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22770_none_37872dae6252462d.manifest
File versionNot applicable
File size106,474
Date (UTC)30-Sep-2010
Time (UTC)15:10
PlatformNot applicable
File nameX86_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22499_none_396102585f80b742.manifest
File versionNot applicable
File size106,474
Date (UTC)06-Oct-2010
Time (UTC)16:55
PlatformNot applicable
Additional files for all supported x64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameAmd64_ed59630d1f34411758f1477930988f6b_31bf3856ad364e35_6.0.6001.22770_none_0c285fe6591860c4.manifest
File versionNot applicable
File size1,072
Date (UTC)06-Oct-2010
Time (UTC)22:57
PlatformNot applicable
File nameAmd64_fd269708943d4f69b68b179c63f614c6_31bf3856ad364e35_6.0.6002.22499_none_148ee549aae3ef51.manifest
File versionNot applicable
File size1,072
Date (UTC)06-Oct-2010
Time (UTC)22:57
PlatformNot applicable
File nameAmd64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22770_none_93a5c9321aafb763.manifest
File versionNot applicable
File size106,510
Date (UTC)30-Sep-2010
Time (UTC)15:56
PlatformNot applicable
File nameAmd64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22499_none_957f9ddc17de2878.manifest
File versionNot applicable
File size106,510
Date (UTC)06-Oct-2010
Time (UTC)17:11
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,259
Date (UTC)06-Oct-2010
Time (UTC)22:57
PlatformNot applicable
File nameWow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22770_none_9dfa73844f10795e.manifest
File versionNot applicable
File size66,987
Date (UTC)30-Sep-2010
Time (UTC)15:01
PlatformNot applicable
File nameWow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22499_none_9fd4482e4c3eea73.manifest
File versionNot applicable
File size66,987
Date (UTC)06-Oct-2010
Time (UTC)16:39
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_3bf4a9dd88bd81770e751c1c369991d9_31bf3856ad364e35_6.0.6001.22770_none_6c89d98ba5e5b307.manifest
File versionNot applicable
File size1,070
Date (UTC)06-Oct-2010
Time (UTC)22:57
PlatformNot applicable
File nameIa64_f9ea2f871d09da8432088ef7d59fb014_31bf3856ad364e35_6.0.6002.22499_none_5a9531f974f7c46a.manifest
File versionNot applicable
File size1,070
Date (UTC)06-Oct-2010
Time (UTC)22:57
PlatformNot applicable
File nameIa64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22770_none_3788d1a462504f29.manifest
File versionNot applicable
File size106,492
Date (UTC)30-Sep-2010
Time (UTC)15:12
PlatformNot applicable
File nameIa64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22499_none_3962a64e5f7ec03e.manifest
File versionNot applicable
File size106,492
Date (UTC)06-Oct-2010
Time (UTC)16:30
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,249
Date (UTC)06-Oct-2010
Time (UTC)22:57
PlatformNot applicable
File nameWow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6001.22770_none_9dfa73844f10795e.manifest
File versionNot applicable
File size66,987
Date (UTC)30-Sep-2010
Time (UTC)15:01
PlatformNot applicable
File nameWow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22499_none_9fd4482e4c3eea73.manifest
File versionNot applicable
File size66,987
Date (UTC)06-Oct-2010
Time (UTC)16:39
PlatformNot applicable

APPLIES TO
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Standard
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Foundation
  • Windows Web Server 2008
  • Windows Server 2008 Service Pack 2, when used with:
    • Windows Server 2008 Datacenter without Hyper-V
    • Windows Server 2008 Enterprise without Hyper-V
    • Windows Server 2008 Standard without Hyper-V
    • Windows Server 2008 for Itanium-Based Systems
    • Windows Server 2008 Datacenter
    • Windows Server 2008 Enterprise
    • Windows Server 2008 Standard
    • Windows Server 2008 Foundation
    • Windows Web Server 2008
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2300745
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