SMB 2.0 client redirector freezes in Windows Vista SP2 and Windows Server 2008 SP2

Article ID: 2792795 - View products that this article applies to.
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Symptoms

Assume that you run an application on a Windows Vista Service Pack 2 (SP2) or Windows Server 2008 SP2-based computer to access a network share. Additionally, assume that the application accesses the network share by using the Server Message Block 2.0 (SMB 2.0) client redirector. In this situation, the computer freezes.  
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Cause

This issue occurs because of an issue in the MID window on the SMB client that causes the redirector to freeze.
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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 website:
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 Vista SP2 or 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
(http://support.microsoft.com/kb/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
(http://support.microsoft.com/kb/968849/ )
How to obtain the latest service pack for Windows Server 2008

Registry information

To apply this hotfix, 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

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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 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.
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    VersionProductSR_LevelService branch
    6.0.600 2.23xxxWindows Vista and Windows 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 and of Windows Vista
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File nameFile versionFile sizeDateTimePlatform
Mrxsmb20.sys6.0.6002.2300680,89621-Dec-201201:14x86
Mrxsmb.sys6.0.6002.23006106,49621-Dec-201201:14x86
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For all supported x64-based versions of Windows Server 2008 and of Windows Vista
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File nameFile versionFile sizeDateTimePlatform
Mrxsmb20.sys6.0.6002.23006108,03221-Dec-201201:49x64
Mrxsmb.sys6.0.6002.23006135,68021-Dec-201201:49x64
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For all supported IA-64-based versions of Windows Server 2008
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File nameFile versionFile sizeDateTimePlatform
Mrxsmb20.sys6.0.6002.23006266,75221-Dec-201200:52IA-64
Mrxsmb.sys6.0.6002.23006322,56021-Dec-201200:52IA-64
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Workaround

To work around this issue, disable SMB 2.0 on the client computer. To do this, type following two commands in the command prompt, and then press ENTER:
sc config lanmanworkstation depend= bowser/mrxsmb10/nsi
sc config mrxsmb20 start= disabled

Note There is a space after the (=) sign.

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Status

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 the new networking features in Windows Server 2008 and in Windows Vista, such as SMB 2.0, go to the following Microsoft website:
General information about new networking features in Windows Server 2008 and Windows Vista
(http://technet.microsoft.com/en-us/library/bb726965.aspx)
For more information about how to enable/disable SMB protocol, click the following article number to view the article in the Microsoft Knowledge Base:
2696547
(http://support.microsoft.com/kb/2696547/ )
How to enable and disable SMBv1, SMBv2, and SMBv3 in Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows 8, and Windows Server 2012
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

Additional file information

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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
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File nameX86_ad2ae3279eb7af1316474271808bdfd1_31bf3856ad364e35_6.0.6002.23006_none_3a781f852c29798e.manifest
File versionNot applicable
File size698
Date (UTC)21-Dec-2012
Time (UTC)06:56
PlatformNot applicable
File nameX86_c7aab6083d6439008b4287308b183c94_31bf3856ad364e35_6.0.6002.23006_none_8908826da2b9379f.manifest
File versionNot applicable
File size701
Date (UTC)21-Dec-2012
Time (UTC)06:56
PlatformNot applicable
File nameX86_microsoft-windows-smb20-minirdr_31bf3856ad364e35_6.0.6002.23006_none_8d50f30ea00481dd.manifest
File versionNot applicable
File size6,960
Date (UTC)21-Dec-2012
Time (UTC)03:09
PlatformNot applicable
File nameX86_microsoft-windows-smbminirdr_31bf3856ad364e35_6.0.6002.23006_none_82076aa8675c100a.manifest
File versionNot applicable
File size8,844
Date (UTC)21-Dec-2012
Time (UTC)03:06
PlatformNot applicable
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Additional files for all supported x64-based versions of Windows Vista and of Windows Server 2008
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File nameAmd64_9cc2bbe63edd14b77f1454725f8dc932_31bf3856ad364e35_6.0.6002.23006_none_ea121c9c304a3ef6.manifest
File versionNot applicable
File size705
Date (UTC)21-Dec-2012
Time (UTC)06:56
PlatformNot applicable
File nameAmd64_c441830c8c94e7750ec4f1e7351759de_31bf3856ad364e35_6.0.6002.23006_none_11b6f941bc6ed33e.manifest
File versionNot applicable
File size702
Date (UTC)21-Dec-2012
Time (UTC)06:56
PlatformNot applicable
File nameAmd64_microsoft-windows-smb20-minirdr_31bf3856ad364e35_6.0.6002.23006_none_e96f8e925861f313.manifest
File versionNot applicable
File size6,972
Date (UTC)21-Dec-2012
Time (UTC)04:04
PlatformNot applicable
File nameAmd64_microsoft-windows-smbminirdr_31bf3856ad364e35_6.0.6002.23006_none_de26062c1fb98140.manifest
File versionNot applicable
File size9,112
Date (UTC)21-Dec-2012
Time (UTC)03:59
PlatformNot applicable
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Additional files for all supported IA-64-based versions of Windows Server 2008
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File nameIa64_b6e0fefcd04aabf34dfcc785d171a790_31bf3856ad364e35_6.0.6002.23006_none_5c80ea0d819e4dea.manifest
File versionNot applicable
File size703
Date (UTC)21-Dec-2012
Time (UTC)06:56
PlatformNot applicable
File nameIa64_ffbfce0c896cb45c240d13057c7c5f04_31bf3856ad364e35_6.0.6002.23006_none_e4cf06b59032979f.manifest
File versionNot applicable
File size700
Date (UTC)21-Dec-2012
Time (UTC)06:56
PlatformNot applicable
File nameIa64_microsoft-windows-smb20-minirdr_31bf3856ad364e35_6.0.6002.23006_none_8d529704a0028ad9.manifest
File versionNot applicable
File size6,966
Date (UTC)21-Dec-2012
Time (UTC)02:30
PlatformNot applicable
File nameIa64_microsoft-windows-smbminirdr_31bf3856ad364e35_6.0.6002.23006_none_82090e9e675a1906.manifest
File versionNot applicable
File size9,103
Date (UTC)21-Dec-2012
Time (UTC)02:27
PlatformNot applicable
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Properties

Article ID: 2792795 - Last Review: February 13, 2013 - Revision: 1.0
Applies to
  • Windows Vista Service Pack 2
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Starter
  • Windows Vista Ultimate
  • Windows Vista Ultimate 64-bit Edition
  • Windows Server 2008 Service Pack 2
  • 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 for Itanium-Based Systems
  • Windows Server 2008 Foundation
  • Windows Server 2008 Standard
  • Windows Server 2008 Standard without Hyper-V
  • Windows Web Server 2008
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseadvanced KB2792795
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