The Group Policy Client service crashes on a terminal server that is running Windows Server 2008 or Windows Server 2008 R2 when multiple users connect to the server at the same time

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Article ID: 2622802 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You install the Terminal Services role on a computer that is running Windows Server 2008 or Windows Server 2008 R2.
  • You join the terminal server to a domain.
  • Some Group Policy preference settings are configured in the domain and will be applied to the Terminal server.
  • Multiple users create Terminal Services sessions with the terminal server at the same time.
In this scenario, the Group Policy Client service crashes on the terminal server. When this occurs, users cannot log on to the terminal server.

CAUSE

This issue occurs because of a thread synchronization issue in the Group Policy Client service. Specifically, this issue is triggered when multiple threads try to access a static object at the same time.

RESOLUTION

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that 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 website:
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, your computer must be running Windows Server 2008 Service Pack 2 (SP2) or Windows Server 2008 R2 Service Pack 1 (SP1).

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
For more information about how to obtain a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

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

Restart requirement

You must 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 2 . 22xxxWindows Server 2008SP2LDR
  • 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 and for Windows Vista" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintaining the state of the updated component. 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.dll6.0.6002.22746647,68024-Nov-201115:33x86
For all supported x64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Gpprefcl.dll6.0.6002.22746846,84824-Nov-201115:25x64
Gpprefcl.dll6.0.6002.22746647,68024-Nov-201115:33x86
Windows Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" 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, milestone (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
    VersionProductMilestoneService branch
    6.1.760 1.21xxxWindows Server 2008 R2SP1LDR
  • The MANIFEST files (.manifest) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2" section. 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 x64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Gpprefcl.dll6.1.7601.21864788,48022-Nov-201106:24x64
Gpprefcl.dll6.1.7601.21864588,80022-Nov-201105:25x86
Gpprefcl.dll6.1.7601.21864588,80022-Nov-201105:25x86

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 size2,241
Date (UTC)24-Nov-2011
Time (UTC)18:25
PlatformNot applicable
File nameX86_b6e5085ebcde2779aa2dcc618461b849_31bf3856ad364e35_6.0.6002.22746_none_032bff16b4fe65c4.manifest
File versionNot applicable
File size711
Date (UTC)24-Nov-2011
Time (UTC)18:25
PlatformNot applicable
File nameX86_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22746_none_399416c85f5ad6fd.manifest
File versionNot applicable
File size106,474
Date (UTC)24-Nov-2011
Time (UTC)15:55
PlatformNot applicable
Additional files for all supported x64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameAmd64_43262b45eb4d433d1d09ac91c7090a09_31bf3856ad364e35_6.0.6002.22746_none_9020220b9588f7a8.manifest
File versionNot applicable
File size1,072
Date (UTC)24-Nov-2011
Time (UTC)18:25
PlatformNot applicable
File nameAmd64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22746_none_95b2b24c17b84833.manifest
File versionNot applicable
File size106,510
Date (UTC)24-Nov-2011
Time (UTC)15:46
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,257
Date (UTC)24-Nov-2011
Time (UTC)18:25
PlatformNot applicable
File nameWow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.0.6002.22746_none_a0075c9e4c190a2e.manifest
File versionNot applicable
File size66,987
Date (UTC)24-Nov-2011
Time (UTC)15:42
PlatformNot applicable

Additional file information for Windows Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_0f51d537a34ebe2a9d84d9313faee93f_31bf3856ad364e35_6.1.7601.21864_none_35155724f6a80bef.manifest
File versionNot applicable
File size713
Date (UTC)22-Nov-2011
Time (UTC)16:33
PlatformNot applicable
File nameAmd64_67faa635c567c585769ea82ab8b5c288_31bf3856ad364e35_6.1.7601.21864_none_ac83b653796334d1.manifest
File versionNot applicable
File size715
Date (UTC)22-Nov-2011
Time (UTC)16:33
PlatformNot applicable
File nameAmd64_6b4fd24c4eb4209eee1b36cb466e39c2_31bf3856ad364e35_6.1.7601.21864_none_37b5290cc845fe0c.manifest
File versionNot applicable
File size1,070
Date (UTC)22-Nov-2011
Time (UTC)16:33
PlatformNot applicable
File nameAmd64_ba6078b9b5342b3d5ed9da9d87c7a564_31bf3856ad364e35_6.1.7601.21864_none_adbfa86186278a1f.manifest
File versionNot applicable
File size715
Date (UTC)22-Nov-2011
Time (UTC)16:33
PlatformNot applicable
File nameAmd64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.1.7601.21864_none_95c2cb5d78e1a3f0.manifest
File versionNot applicable
File size53,972
Date (UTC)22-Nov-2011
Time (UTC)06:57
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,290
Date (UTC)22-Nov-2011
Time (UTC)16:33
PlatformNot applicable
File nameWow64_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.1.7601.21864_none_a01775afad4265eb.manifest
File versionNot applicable
File size34,836
Date (UTC)22-Nov-2011
Time (UTC)06:00
PlatformNot applicable
File nameX86_microsoft-windows-g..ppolicy-policymaker_31bf3856ad364e35_6.1.7601.21864_none_39a42fd9c08432ba.manifest
File versionNot applicable
File size53,968
Date (UTC)22-Nov-2011
Time (UTC)06:11
PlatformNot applicable

Properties

Article ID: 2622802 - Last Review: January 11, 2012 - Revision: 2.0
APPLIES TO
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Standard
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 Foundation
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 for Itanium-Based Systems
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Standard
  • Windows Web Server 2008 R2
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbexpertiseadvanced kbsurveynew KB2622802

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