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Article ID: 2627007 - Last Review: December 28, 2012 - Revision: 2.0

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Symptoms

Consider the following scenario:
  • You have a DFS Namespace that contains one or more DFS links that point to a Web Distributed Authoring and Versioning (WebDAV) resource. For example, the DFS links point to a Microsoft SharePoint server.
  • On a client computer that is running Windows 7 or Windows Server 2008 R2, you start the WebClient service, and then you click one of the DFS links.

    Note If the client computer is running Windows Server 2008 R2, you must install the Desktop Experience feature on the computer. This is because the WebClient service, which you need to access WebDAV shares, is included in the Desktop Experience feature.
In this scenario, the DFS link stops working after some time. Additionally, you receive the following error message:
The network path was not found.
Notes
  • When this issue occurs, the Universal Naming Convention (UNC) path of the WebDav resource still works.
  • When this issue occurs, you can temporarily restore access to the WebDAV resource by using one of the following methods:
    • Run the dfsutil cache provider flush command to flush the provider cache.
    • Click the Check Status button on the DFS tab in the Folder Properties window.

Cause

This issue occurs because the path of the WebDAV resource is not assembled correctly.

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 one of the following operating systems:
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932  (http://support.microsoft.com/kb/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 7 and 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, 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
    6.1.760 0 . 21xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1 . 21xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • 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 R2 and for Windows 7" section. MUM 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 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Mrxdav.sys6.1.7600.21076116,22425-Oct-201102:24x86
Mrxdav.sys6.1.7601.21846115,71225-Oct-201103:30x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Mrxdav.sys6.1.7600.21076141,31225-Oct-201102:52x64
Mrxdav.sys6.1.7601.21846140,80025-Oct-201103:37x64
Mrxdav.sys6.1.7600.21076116,22425-Oct-201102:24x86
Mrxdav.sys6.1.7601.21846115,71225-Oct-201103:30x86

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

Additional file information

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameX86_d2a52b77a52c72f88536d5e5d37b6747_31bf3856ad364e35_6.1.7600.21076_none_ed41a7973cc6fa1a.manifest
File versionNot applicable
File size706
Date (UTC)25-Oct-2011
Time (UTC)10:15
PlatformNot applicable
File nameX86_f3c41c886af6f802125911f04caa66b0_31bf3856ad364e35_6.1.7601.21846_none_e5398bd93a4964e0.manifest
File versionNot applicable
File size706
Date (UTC)25-Oct-2011
Time (UTC)10:15
PlatformNot applicable
File nameX86_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.1.7600.21076_none_151689fc4023fc40.manifest
File versionNot applicable
File size12,632
Date (UTC)25-Oct-2011
Time (UTC)05:10
PlatformNot applicable
File nameX86_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.1.7601.21846_none_171d808a3d31de3e.manifest
File versionNot applicable
File size12,632
Date (UTC)25-Oct-2011
Time (UTC)07:22
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_193be4800e29d8bd7ace16ca1019205a_31bf3856ad364e35_6.1.7600.21076_none_be3d4fffe1105c5b.manifest
File versionNot applicable
File size710
Date (UTC)25-Oct-2011
Time (UTC)10:15
PlatformNot applicable
File nameAmd64_1fa3c32ae3a4fe90827b33bec4ca8b9e_31bf3856ad364e35_6.1.7601.21846_none_adc27f4bc796a58f.manifest
File versionNot applicable
File size710
Date (UTC)25-Oct-2011
Time (UTC)10:15
PlatformNot applicable
File nameAmd64_a2ec83d6570d430e61f8d238b97ca571_31bf3856ad364e35_6.1.7600.21076_none_f8f4aa43a6cdf17c.manifest
File versionNot applicable
File size710
Date (UTC)25-Oct-2011
Time (UTC)10:15
PlatformNot applicable
File nameAmd64_ff695ec16cc02424686561da0d88921e_31bf3856ad364e35_6.1.7601.21846_none_883bbd2e19b3d1e2.manifest
File versionNot applicable
File size710
Date (UTC)25-Oct-2011
Time (UTC)10:15
PlatformNot applicable
File nameAmd64_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.1.7600.21076_none_7135257ff8816d76.manifest
File versionNot applicable
File size12,634
Date (UTC)25-Oct-2011
Time (UTC)06:13
PlatformNot applicable
File nameAmd64_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.1.7601.21846_none_733c1c0df58f4f74.manifest
File versionNot applicable
File size12,634
Date (UTC)25-Oct-2011
Time (UTC)07:44
PlatformNot applicable
File nameWow64_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.1.7600.21076_none_7b89cfd22ce22f71.manifest
File versionNot applicable
File size6,779
Date (UTC)25-Oct-2011
Time (UTC)04:53
PlatformNot applicable
File nameWow64_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.1.7601.21846_none_7d90c66029f0116f.manifest
File versionNot applicable
File size6,779
Date (UTC)25-Oct-2011
Time (UTC)06:48
PlatformNot applicable

Applies to
  • Windows 7 Enterprise
  • Windows 7 Professional
  • Windows 7 Ultimate
  • Windows Server 2008 R2 Standard
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Datacenter
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2627007
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