You cannot open a trusted WebDAV folder by using the SharePoint Explorer View feature in Windows Vista or in Windows Server 2008

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Article ID: 2577797 - View products that this article applies to.
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SYMPTOMS

Assume that you have a Web Distributed Authoring and Versioning (WebDAV) folder. The folder is a trusted site in Windows Internet Explorer on a computer that is running Windows Vista or Windows Server 2008. However, if you set the Autologon policy security level to medium, you cannot open the WebDAV folder by using the Microsoft SharePoint Explorer View feature. Additionally, you may receive an "access denied" error.

Note You may also receive other error messages, such as the following:
Your client does not support opening this list with Windows Explorer.

CAUSE

The issue occurs because WebDAV does not send authentication credentials if the Autologon policy security level is not set correctly.

RESOLUTION

After you install this hotfix, a check is performed to determine whether the site is trusted or not trusted before the computer sends a request to the server. If the site is trusted, the Autologon policy security level is set to low.

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
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 Vista Service Pack 1 (SP1)
  • Windows Vista Service Pack 2 (SP2)
  • Windows Server 2008
  • Windows Server 2008 Service Pack 2 (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

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 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.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.0.600 1 . 22xxxWindows Vista and Windows Server 2008SP1LDR
    6.0.600 2 . 22xxxWindows 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 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
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Davclnt.dll6.0.6001.2294455,29614-Jul-201114:33x86
Mrxdav.sys6.0.6001.22944113,66414-Jul-201112:50x86
Webclnt.dll6.0.6001.22944199,16814-Jul-201114:37x86
Webclnt.dll6.0.6002.22679200,19214-Jul-201115:17x86
For all supported x64-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Davclnt.dll6.0.6001.2294473,72814-Jul-201114:55x64
Mrxdav.sys6.0.6001.22944138,24014-Jul-201113:08x64
Webclnt.dll6.0.6001.22944216,57614-Jul-201114:59x64
Webclnt.dll6.0.6002.22679219,13614-Jul-201115:25x64
Mrxdav.sys6.0.6001.22944113,66414-Jul-201112:50x86
Davclnt.dll6.0.6001.2294455,29614-Jul-201114:33x86
Webclnt.dll6.0.6001.22944199,16814-Jul-201114:37x86
Webclnt.dll6.0.6002.22679200,19214-Jul-201115:17x86

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 Vista and for Windows Server 2008

Additional files for all supported x86-based versions of Windows Vista and of Windows Server 2008
Collapse this tableExpand this table
File nameUpdate.mum
File versionNot applicable
File size2,383
Date (UTC)14-Jul-2011
Time (UTC)18:53
PlatformNot applicable
File nameX86_1d932a021a74a49c787323113b31bc0e_31bf3856ad364e35_6.0.6002.22679_none_966dbe5551640300.manifest
File versionNot applicable
File size709
Date (UTC)14-Jul-2011
Time (UTC)18:53
PlatformNot applicable
File nameX86_6febbd2fe75555c7391c318614acf6a5_31bf3856ad364e35_6.0.6001.22944_none_e744274c13223a83.manifest
File versionNot applicable
File size709
Date (UTC)14-Jul-2011
Time (UTC)18:53
PlatformNot applicable
File nameX86_a7c64eee9eccf3f7d43f03d542cb45e1_31bf3856ad364e35_6.0.6001.22944_none_947969ba9b847818.manifest
File versionNot applicable
File size1,059
Date (UTC)14-Jul-2011
Time (UTC)18:53
PlatformNot applicable
File nameX86_b02226a306e2ff9319cdeab24189f35e_31bf3856ad364e35_6.0.6001.22944_none_e21cd937965d7356.manifest
File versionNot applicable
File size1,412
Date (UTC)14-Jul-2011
Time (UTC)18:53
PlatformNot applicable
File nameX86_microsoft-windows-webdavredir-davclient_31bf3856ad364e35_6.0.6001.22944_none_942fd6b26b7998a6.manifest
File versionNot applicable
File size5,069
Date (UTC)14-Jul-2011
Time (UTC)14:50
PlatformNot applicable
File nameX86_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.0.6001.22944_none_150d52aadef602bc.manifest
File versionNot applicable
File size13,642
Date (UTC)14-Jul-2011
Time (UTC)14:47
PlatformNot applicable
File nameX86_microsoft-windows-webdavredir-webclient_31bf3856ad364e35_6.0.6001.22944_none_5588372fccec01a3.manifest
File versionNot applicable
File size6,904
Date (UTC)14-Jul-2011
Time (UTC)14:51
PlatformNot applicable
File nameX86_microsoft-windows-webdavredir-webclient_31bf3856ad364e35_6.0.6002.22679_none_57533ac5ca26294d.manifest
File versionNot applicable
File size6,904
Date (UTC)14-Jul-2011
Time (UTC)15:41
PlatformNot applicable
Additional files for all supported x64-based versions of Windows Vista and of Windows Server 2008
Collapse this tableExpand this table
File nameAmd64_03e0225f9ea3df5adb41827a1f532968_31bf3856ad364e35_6.0.6002.22679_none_d443e14dbef7a68f.manifest
File versionNot applicable
File size1,066
Date (UTC)14-Jul-2011
Time (UTC)18:53
PlatformNot applicable
File nameAmd64_05975e36e832a32346c396b688923626_31bf3856ad364e35_6.0.6001.22944_none_a1650703223ee081.manifest
File versionNot applicable
File size2,126
Date (UTC)14-Jul-2011
Time (UTC)18:53
PlatformNot applicable
File nameAmd64_3de16fb08ab145c939378594b6d4199e_31bf3856ad364e35_6.0.6001.22944_none_95a2593111c72fb1.manifest
File versionNot applicable
File size2,478
Date (UTC)14-Jul-2011
Time (UTC)18:53
PlatformNot applicable
File nameAmd64_microsoft-windows-webdavredir-davclient_31bf3856ad364e35_6.0.6001.22944_none_f04e723623d709dc.manifest
File versionNot applicable
File size5,087
Date (UTC)14-Jul-2011
Time (UTC)15:16
PlatformNot applicable
File nameAmd64_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.0.6001.22944_none_712bee2e975373f2.manifest
File versionNot applicable
File size13,906
Date (UTC)14-Jul-2011
Time (UTC)15:10
PlatformNot applicable
File nameAmd64_microsoft-windows-webdavredir-webclient_31bf3856ad364e35_6.0.6001.22944_none_b1a6d2b3854972d9.manifest
File versionNot applicable
File size6,934
Date (UTC)14-Jul-2011
Time (UTC)15:17
PlatformNot applicable
File nameAmd64_microsoft-windows-webdavredir-webclient_31bf3856ad364e35_6.0.6002.22679_none_b371d64982839a83.manifest
File versionNot applicable
File size6,934
Date (UTC)14-Jul-2011
Time (UTC)15:47
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,401
Date (UTC)14-Jul-2011
Time (UTC)18:53
PlatformNot applicable
File nameWow64_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.0.6001.22944_none_7b809880cbb435ed.manifest
File versionNot applicable
File size8,609
Date (UTC)14-Jul-2011
Time (UTC)14:42
PlatformNot applicable
File nameX86_microsoft-windows-webdavredir-davclient_31bf3856ad364e35_6.0.6001.22944_none_942fd6b26b7998a6.manifest
File versionNot applicable
File size5,069
Date (UTC)14-Jul-2011
Time (UTC)14:50
PlatformNot applicable
File nameX86_microsoft-windows-webdavredir-webclient_31bf3856ad364e35_6.0.6001.22944_none_5588372fccec01a3.manifest
File versionNot applicable
File size6,904
Date (UTC)14-Jul-2011
Time (UTC)14:51
PlatformNot applicable
File nameX86_microsoft-windows-webdavredir-webclient_31bf3856ad364e35_6.0.6002.22679_none_57533ac5ca26294d.manifest
File versionNot applicable
File size6,904
Date (UTC)14-Jul-2011
Time (UTC)15:41
PlatformNot applicable

Properties

Article ID: 2577797 - Last Review: September 6, 2011 - Revision: 2.0
APPLIES TO
  • 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 Datacenter
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Enterprise without Hyper-V
  • 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 KB2577797

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