Windows Explorer stops responding or the Svchost.exe process stops responding when you try to copy encrypted files to a WebDAV resource in Windows Vista

Windows Explorer stops responding or the Svchost.exe process stops responding when you try to copy encrypted files to a WebDAV resource in Windows Vista

Article ID : 933771
Last Review : August 29, 2007
Revision : 2.0
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SYMPTOMS

In Windows Vista, the Svchost.exe process stops responding when you try to copy encrypted Encrypting File System (EFS) files to a Web Distributed Authoring and Versioning (WebDAV) resource. If you use Windows Explorer to do this, Windows Explorer stops responding. You may have to restart the computer.

Note The Svchost.exe process hosts the WebClient service.

When you try to save an encrypted 2007 Microsoft Office document to a WebDAV resource, you may receive an error message that says that the document cannot be saved.

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CAUSE

This problem occurs because of a code defect in the Mrxdav.sys file.

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RESOLUTION

Hotfix information

A supported hotfix is now 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 this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451 (http://go.microsoft.com/?linkid=6294451)

Note If additional issues occur or 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. 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)

Prerequisites

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista, 32-bit versions
File name File version File size Date Time Platform
Mrxdav.sys 6.0.6000.20566 110,080 27-Mar-2007 00:36 x86
Windows Vista, 64-bit versions
File name File version File size Date Time Platform
Mrxdav.sys 6.0.6000.20566 133,632 27-Mar-2007 00:50 x64

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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 terms that are used to describe software updates, click the following article number to view the article in the Microsoft Knowledge Base:

824684 (/Feedback.aspx?kbNumber=824684/) Description of the standard terminology that is used to describe Microsoft software updates

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APPLIES TO
• Windows Vista Home Basic
• Windows Vista Home Premium
• Windows Vista Ultimate
• Windows Vista Business
• Windows Vista Enterprise
• Windows Vista Starter
• Windows Vista Home Basic 64-bit Edition
• Windows Vista Home Premium 64-bit Edition
• Windows Vista Ultimate 64-bit Edition
• Windows Vista Business 64-bit Edition
• Windows Vista Enterprise 64-bit Edition

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Keywords: 
kbbug kbfix kbqfe kbpubtypekc kbexpertiseinter kbhotfixserver kbwinvistapostrtmfix KB933771

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
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