You cannot access a WebDAV site whose SSL setting for client certificates is set to Accept if you cancel the Select Certificate dialog box on a computer that is running Windows Vista or Windows Server 2008

You cannot access a WebDAV site whose SSL setting for client certificates is set to Accept if you cancel the Select Certificate dialog box on a computer that is running Windows Vista or Windows Server 2008

Article ID : 954809
Last Review : September 10, 2008
Revision : 1.1
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SYMPTOMS

Consider the following scenario.

• On a Web Distributed Authoring and Versioning (WebDAV) site, you set the Secure Sockets Layer (SSL) setting for client certificates to Accept.
• On a computer that is running Windows Vista or Windows Server 2008, a user adds this WebDAV site by running the Add Network Location Wizard or the Map Network Drive Wizard.
• After the user finishes running the wizard, the Select Certificate dialog box is displayed. In the Select Certificate dialog box, the user clicks Cancel.

In this scenario, you expect the user to obtain an instant connection to the WebDAV site or to receive a dialog box that requests the user’s credentials. Instead, the operation exits unexpectedly.

Notes

• When the SSL setting for client certificates is set to Accept, you expect the user to be able to provide a certificate or credentials to access the WebDAV site.
• This issue does not occur on a computer that is running Windows XP or Windows Server 2003.

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CAUSE

Currently, the SSL setting for client certificates on a Web server can be configured to Ignore, to Accept, or to Require. When this setting is configured to Accept, the server (WebDAV site) requires the client to send a certificate. If the client does not have a certificate, the server and the client can negotiate for other authentication mechanisms. However, a WebDAV client that is running Windows Vista or a Windows Server 2008 supports only Ignore or Require for the SSL setting for client certificates. Therefore, when the user who does not select a certificate tries to access the WebDAV site, the operation exits.

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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 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 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, the computer must be running one of the following:

• Windows Vista
• Windows Vista SP1
• Windows Server 2008

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

Registry information

To use this hotfix, you do not have to make any changes to the registry.

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 and Windows Server 2008 file information note

• The files that apply to a specific product, milestone (RTM, SPn) can be identified by examining the file version numbers as shown in the following table:

Version Product Milestone Service branch
6.0.6000.20xxx Windows RTM LDR
6.0.6001.22xxx Windows Vista SP1 and Windows Server 2008 SP1 SP1 LDR
• Service Pack 1 is integrated into Windows Server 2008. Therefore, RTM milestone files apply only to Windows Vista. RTM milestone files have a 6.0.0000.xxxxxx version number.
• The MANIFEST files (.manifest) and MUM files (.mum) that are installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows Server 2008 and of Windows Vista
File name File version File size Date Time Platform
Davclnt.dll 6.0.6000.20898 54,272 19-Aug-2008 03:16 x86
Davclnt.dll 6.0.6001.22246 54,272 19-Aug-2008 03:30 x86
Mrxdav.sys 6.0.6000.20898 113,152 19-Aug-2008 00:41 x86
Mrxdav.sys 6.0.6001.22246 113,664 19-Aug-2008 00:49 x86
Webclnt.dll 6.0.6000.20898 197,120 19-Aug-2008 03:19 Not Applicable
Webclnt.dll 6.0.6001.22246 197,632 19-Aug-2008 03:30 Not Applicable
For all supported x64-based versions of Windows Server 2008 and of Windows Vista
File name File version File size Date Time Platform
Davclnt.dll 6.0.6000.20898 72,704 19-Aug-2008 03:33 x64
Davclnt.dll 6.0.6001.22246 72,704 19-Aug-2008 04:46 x64
Mrxdav.sys 6.0.6000.20898 137,728 19-Aug-2008 01:01 x64
Mrxdav.sys 6.0.6001.22246 137,728 19-Aug-2008 02:01 x64
Webclnt.dll 6.0.6000.20898 214,016 19-Aug-2008 03:37 x64
Webclnt.dll 6.0.6001.22246 215,040 19-Aug-2008 04:46 x64
Mrxdav.sys 6.0.6001.22246 113,664 19-Aug-2008 00:49 x86

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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 how to add a network location, visit the following Microsoft Web site:

http://windowshelp.microsoft.com/Windows/en-US/Help/909d569b-ed98-4176-9f7c-6eed5201ba441033.mspx (http://windowshelp.microsoft.com/Windows/en-US/Help/909d569b-ed98-4176-9f7c-6eed5201ba441033.mspx)

Additional file information for Windows Server 2008 and for Windows Vista

Additional files for all supported x86-based versions of Windows Server 2008 and of Windows Vista
File name Package_1_for_kb954809~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,777
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_2_for_kb954809~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 2,163
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_3_for_kb954809~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 2,228
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_4_for_kb954809~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 2,228
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_for_kb954809_client_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,408
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_for_kb954809_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,641
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_for_kb954809_client~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,712
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_for_kb954809_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,408
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_for_kb954809_server~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,431
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name X86_0c92196cdb52458d8cf6c850624b56c4_31bf3856ad364e35_6.0.6001.22246_none_f21fe88e68608e9a.manifest
File version Not Applicable
File size 709
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name X86_4e9d7ac818384f259c27517813f8082d_31bf3856ad364e35_6.0.6001.22246_none_e4276503a3a534a2.manifest
File version Not Applicable
File size 1,059
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name X86_ee6e016bf8b8efba03e45f0cd2db9997_31bf3856ad364e35_6.0.6001.22246_none_43dec734e958c674.manifest
File version Not Applicable
File size 1,412
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name X86_fd095c6612da61cfd58190e46ae97f65_31bf3856ad364e35_6.0.6000.20898_none_55f98be381d40bd6.manifest
File version Not Applicable
File size 1,412
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name X86_microsoft-windows-webdavredir-davclient_31bf3856ad364e35_6.0.6000.20898_none_92177c4e6e780cb5.manifest
File version Not Applicable
File size 5,069
Date (UTC) 19-Aug-2008
Time (UTC) 03:36
File name X86_microsoft-windows-webdavredir-davclient_31bf3856ad364e35_6.0.6001.22246_none_9431c9fc6b77df43.manifest
File version Not Applicable
File size 5,069
Date (UTC) 19-Aug-2008
Time (UTC) 04:03
File name X86_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.0.6000.20898_none_12f4f846e1f476cb.manifest
File version Not Applicable
File size 13,639
Date (UTC) 19-Aug-2008
Time (UTC) 03:34
File name X86_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.0.6001.22246_none_150f45f4def44959.manifest
File version Not Applicable
File size 13,642
Date (UTC) 19-Aug-2008
Time (UTC) 04:00
File name X86_microsoft-windows-webdavredir-webclient_31bf3856ad364e35_6.0.6000.20898_none_536fdccbcfea75b2.manifest
File version Not Applicable
File size 6,904
Date (UTC) 19-Aug-2008
Time (UTC) 03:37
File name X86_microsoft-windows-webdavredir-webclient_31bf3856ad364e35_6.0.6001.22246_none_558a2a79ccea4840.manifest
File version Not Applicable
File size 6,904
Date (UTC) 19-Aug-2008
Time (UTC) 04:05
Additional files for all supported x64-based versions of Windows Server 2008 and of Windows Vista
File name Amd64_3c5d6bb844423a3a6f08c0fa5c9cdc12_31bf3856ad364e35_6.0.6000.20898_none_65c337fd798084fb.manifest
File version Not Applicable
File size 2,126
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Amd64_c60ef40633b8cafd5a121a753ebe5d53_31bf3856ad364e35_6.0.6001.22246_none_4b40f420cc1f30ab.manifest
File version Not Applicable
File size 2,478
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Amd64_d1bebb34991090e952213a182426a129_31bf3856ad364e35_6.0.6001.22246_none_fd50b90303f80eaf.manifest
File version Not Applicable
File size 2,126
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Amd64_microsoft-windows-webdavredir-davclient_31bf3856ad364e35_6.0.6000.20898_none_ee3617d226d57deb.manifest
File version Not Applicable
File size 5,087
Date (UTC) 19-Aug-2008
Time (UTC) 03:58
File name Amd64_microsoft-windows-webdavredir-davclient_31bf3856ad364e35_6.0.6001.22246_none_f050658023d55079.manifest
File version Not Applicable
File size 5,087
Date (UTC) 19-Aug-2008
Time (UTC) 05:25
File name Amd64_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.0.6000.20898_none_6f1393ca9a51e801.manifest
File version Not Applicable
File size 13,903
Date (UTC) 19-Aug-2008
Time (UTC) 03:56
File name Amd64_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.0.6001.22246_none_712de1789751ba8f.manifest
File version Not Applicable
File size 13,906
Date (UTC) 19-Aug-2008
Time (UTC) 05:21
File name Amd64_microsoft-windows-webdavredir-webclient_31bf3856ad364e35_6.0.6000.20898_none_af8e784f8847e6e8.manifest
File version Not Applicable
File size 6,934
Date (UTC) 19-Aug-2008
Time (UTC) 03:59
File name Amd64_microsoft-windows-webdavredir-webclient_31bf3856ad364e35_6.0.6001.22246_none_b1a8c5fd8547b976.manifest
File version Not Applicable
File size 6,934
Date (UTC) 19-Aug-2008
Time (UTC) 05:27
File name Package_1_for_kb954809~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 2,860
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_2_for_kb954809~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 2,922
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_3_for_kb954809~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 2,696
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_for_kb954809_client_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 1,416
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_for_kb954809_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 1,375
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_for_kb954809_client~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 1,721
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_for_kb954809_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 1,416
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Package_for_kb954809_server~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 1,438
Date (UTC) 20-Aug-2008
Time (UTC) 01:22
File name Wow64_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.0.6001.22246_none_7b828bcacbb27c8a.manifest
File version Not Applicable
File size 8,609
Date (UTC) 19-Aug-2008
Time (UTC) 03:53

For more information, 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 Server 2008 Datacenter without Hyper-V
• Windows Server 2008 Enterprise without Hyper-V
• Windows Server 2008 for Itanium-Based Systems
• Windows Server 2008 Standard without Hyper-V
• Windows Server 2008 Datacenter
• Windows Server 2008 Enterprise
• Windows Server 2008 Standard
• Windows Vista Enterprise 64-bit Edition
• Windows Vista Home Basic 64-bit Edition
• Windows Vista Home Premium 64-bit Edition
• Windows Vista Ultimate 64-bit Edition
• Windows Vista Business
• Windows Vista Business 64-bit Edition
• Windows Vista Enterprise
• Windows Vista Home Basic
• Windows Vista Home Premium
• Windows Vista Ultimate

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Keywords: 
kbautohotfix kbexpertiseadvanced kbfix kbqfe kbhotfixserver KB954809

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Microsoft Knowledge Base Article

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