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A computer stops responding when you try to access a network share file and when the computer is running Windows vista or Windows Server 2008

View products that this article applies to.


Consider the following scenario:
  • You have a computer that is running Windows Vista or Windows Server 2008.
  • Client-side caching is disabled on the computer.
  • You try to open a network share file on the computer.
In this scenario, the computer stops responding.

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This issue occurs because of a problem in the client-side caching driver.

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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.


To apply this hotfix, you must be running one of the following operating systems on the computer:
  • Windows Vista Service Pack 1 (SP1)
  • Windows Vista Service Pack 2 (SP2)
  • Windows Server 2008
  • Windows Server 2008 SP2
For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack
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

Restart requirement

You may have to restart the computer after you install this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English (United States) 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 Vista and 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.
    VersionProductSR_LevelService branch
    6.0.600 1 . 22xxxWindows Vista and Windows Server 2008SP1LDR
    6.0.600 2 . 22xxxWindows Vista and Windows Server 2008SP2LDR
  • Service Pack 1 is integrated into the release version of Windows Server 2008. Therefore, RTM milestone files apply only to Windows Vista. RTM milestone files have a 6.0.0000.xxxxx version number.
  • 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 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 and of Windows Vista
File nameFile versionFile sizeDateTimePlatform
For all supported x64-based versions of Windows Server 2008 and of Windows Vista
File nameFile versionFile sizeDateTimePlatform
For all supported IA-64-based versions of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform

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To work around this issue, enable client-side caching.

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

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More information

For more information about how to enable client-side caching, click the following article number to view the article in the Microsoft Knowledge Base:
884739 Features and functions in version 1.1 of the Client-Side Caching Command-Line Options command-line tool
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 Vista and for Windows Server 2008

Additional files for all supported x86-based versions of Windows Vista and of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform
Package_for_kb976266_client_1~31bf3856ad364e35~x86~~ Applicable1,36706-Feb-201010:42Not Applicable
Package_for_kb976266_client_2~31bf3856ad364e35~x86~~ Applicable1,69406-Feb-201010:42Not Applicable
Package_for_kb976266_client~31bf3856ad364e35~x86~~ Applicable1,71306-Feb-201010:42Not Applicable
Package_for_kb976266_sc_0~31bf3856ad364e35~x86~~ Applicable1,42106-Feb-201010:42Not Applicable
Package_for_kb976266_sc_1~31bf3856ad364e35~x86~~ Applicable1,69006-Feb-201010:42Not Applicable
Package_for_kb976266_sc~31bf3856ad364e35~x86~~ Applicable1,70106-Feb-201010:42Not Applicable
Package_for_kb976266_server_0~31bf3856ad364e35~x86~~ Applicable1,42506-Feb-201010:42Not Applicable
Package_for_kb976266_server_1~31bf3856ad364e35~x86~~ Applicable1,69406-Feb-201010:42Not Applicable
Package_for_kb976266_server~31bf3856ad364e35~x86~~ Applicable1,71306-Feb-201010:42Not Applicable
Package_for_kb976266_winpesrv_0~31bf3856ad364e35~x86~~ Applicable1,42206-Feb-201010:42Not Applicable
Package_for_kb976266_winpesrv~31bf3856ad364e35~x86~~ Applicable1,43006-Feb-201010:42Not Applicable
X86_microsoft-windows-rdbss_31bf3856ad364e35_6.0.6001.22626_none_5a4edff97a91d10d.manifestNot Applicable6,85605-Feb-201021:51Not Applicable
X86_microsoft-windows-rdbss_31bf3856ad364e35_6.0.6002.22330_none_5c24803977c5aa18.manifestNot Applicable6,85605-Feb-201021:20Not Applicable
Additional files for all supported x64-based versions of Windows Vista and of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform
Amd64_microsoft-windows-rdbss_31bf3856ad364e35_6.0.6001.22626_none_b66d7b7d32ef4243.manifestNot Applicable7,11306-Feb-201004:01Not Applicable
Amd64_microsoft-windows-rdbss_31bf3856ad364e35_6.0.6002.22330_none_b8431bbd30231b4e.manifestNot Applicable7,11305-Feb-201021:19Not Applicable
Package_for_kb976266_client_1~31bf3856ad364e35~amd64~~ Applicable1,37506-Feb-201010:42Not Applicable
Package_for_kb976266_client_2~31bf3856ad364e35~amd64~~ Applicable1,70606-Feb-201010:42Not Applicable
Package_for_kb976266_client~31bf3856ad364e35~amd64~~ Applicable1,72306-Feb-201010:42Not Applicable
Package_for_kb976266_sc_0~31bf3856ad364e35~amd64~~ Applicable1,42906-Feb-201010:42Not Applicable
Package_for_kb976266_sc_1~31bf3856ad364e35~amd64~~ Applicable1,70206-Feb-201010:42Not Applicable
Package_for_kb976266_sc~31bf3856ad364e35~amd64~~ Applicable1,71106-Feb-201010:42Not Applicable
Package_for_kb976266_server_0~31bf3856ad364e35~amd64~~ Applicable1,43306-Feb-201010:42Not Applicable
Package_for_kb976266_server_1~31bf3856ad364e35~amd64~~ Applicable1,70606-Feb-201010:42Not Applicable
Package_for_kb976266_server~31bf3856ad364e35~amd64~~ Applicable1,72306-Feb-201010:42Not Applicable
Package_for_kb976266_winpesrv_0~31bf3856ad364e35~amd64~~ Applicable1,43006-Feb-201010:42Not Applicable
Package_for_kb976266_winpesrv~31bf3856ad364e35~amd64~~ Applicable1,43806-Feb-201010:42Not Applicable
Additional files for all supported IA-64-based versions of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform
Ia64_microsoft-windows-rdbss_31bf3856ad364e35_6.0.6001.22626_none_5a5083ef7a8fda09.manifestNot Applicable7,10705-Feb-201021:38Not Applicable
Ia64_microsoft-windows-rdbss_31bf3856ad364e35_6.0.6002.22330_none_5c26242f77c3b314.manifestNot Applicable7,10705-Feb-201020:49Not Applicable
Package_for_kb976266_sc_0~31bf3856ad364e35~ia64~~ Applicable1,42506-Feb-201010:42Not Applicable
Package_for_kb976266_sc_1~31bf3856ad364e35~ia64~~ Applicable1,53006-Feb-201010:42Not Applicable
Package_for_kb976266_sc~31bf3856ad364e35~ia64~~ Applicable1,70606-Feb-201010:42Not Applicable
Package_for_kb976266_server_0~31bf3856ad364e35~ia64~~ Applicable1,42906-Feb-201010:42Not Applicable
Package_for_kb976266_server_1~31bf3856ad364e35~ia64~~ Applicable1,53306-Feb-201010:42Not Applicable
Package_for_kb976266_server~31bf3856ad364e35~ia64~~ Applicable1,71806-Feb-201010:42Not Applicable
Package_for_kb976266_winpesrv_0~31bf3856ad364e35~ia64~~ Applicable1,42606-Feb-201010:42Not Applicable
Package_for_kb976266_winpesrv~31bf3856ad364e35~ia64~~ Applicable1,43406-Feb-201010:42Not Applicable

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Keywords: kbqfe, kbhotfixserver, kbsurveynew, kbautohotfix, kbexpertiseadvanced, kbbug, kbfix, KB976266

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Article Info
Article ID : 976266
Revision : 1
Created on : 4/14/2010
Published on : 4/14/2010
Exists online : False
Views : 348