You are prompted for user credentials two times on a Windows Vista-based client computer when you access an online document that is on a site that uses Windows Live ID authentication

You are prompted for user credentials two times on a Windows Vista-based client computer when you access an online document that is on a site that uses Windows Live ID authentication

Article ID : 948531
Last Review : March 5, 2008
Revision : 1.0
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On a Windows Vista-based client computer, you access an online document that is on a site that uses Windows Live ID (WLID) authentication. Then, you are prompted for user credentials two times. However, you expect to be prompted for user credentials only one time.

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The Microsoft Office Live Workspace client uses WLID to access the online document. Office Live Workspace uses two networking stacks for communicating with remote servers. Credentials are not transferred between the stacks. Therefore, the user is prompted for user credentials multiple times.

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Note After you apply this hotfix, Windows Vista stores WLID credentials for the Windows session. Therefore, credentials can be transferred between stacks.

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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 Windows Vista 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: (

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: (


No prerequisites are required.

Restart requirement

You have to 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, 32-bit versions
File name File version File size Date Time Platform
Package_1_for_kb948531~31bf3856ad364e35~x86~~ Not Applicable 1,777 23-Feb-2008 01:55 Not Applicable
Package_2_for_kb948531~31bf3856ad364e35~x86~~ Not Applicable 1,777 23-Feb-2008 01:55 Not Applicable
Package_3_for_kb948531~31bf3856ad364e35~x86~~ Not Applicable 2,228 23-Feb-2008 01:55 Not Applicable
Package_for_kb948531_client_0~31bf3856ad364e35~x86~~ Not Applicable 1,408 23-Feb-2008 01:55 Not Applicable
Package_for_kb948531_client_1~31bf3856ad364e35~x86~~ Not Applicable 1,352 23-Feb-2008 01:55 Not Applicable
Package_for_kb948531_client~31bf3856ad364e35~x86~~ Not Applicable 1,711 23-Feb-2008 01:55 Not Applicable
Package_for_kb948531_server_0~31bf3856ad364e35~x86~~ Not Applicable 1,408 23-Feb-2008 01:55 Not Applicable
Package_for_kb948531_server~31bf3856ad364e35~x86~~ Not Applicable 1,430 23-Feb-2008 01:55 Not Applicable
Update.mum Not Applicable 1,888 23-Feb-2008 01:55 Not Applicable
X86_21eef45f3cc383ecb3a0cd8d99d80501_31bf3856ad364e35_6.0.6000.20777_none_a33ed880ab892e04.manifest Not Applicable 1,412 23-Feb-2008 01:55 Not Applicable
X86_5ee375fe116d8c8c2af5960d485b4689_31bf3856ad364e35_6.0.6001.22120_none_d5ba3a7e625670e3.manifest Not Applicable 709 23-Feb-2008 01:55 Not Applicable
X86_microsoft-windows-webdavredir-davclient_31bf3856ad364e35_6.0.6000.20777_none_922c19f66e68be55.manifest Not Applicable 5,069 22-Feb-2008 05:12 Not Applicable
X86_microsoft-windows-webdavredir-davclient_31bf3856ad364e35_6.0.6001.22120_none_944166326b6d1230.manifest Not Applicable 5,069 22-Feb-2008 08:50 Not Applicable
X86_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.0.6000.20777_none_130995eee1e5286b.manifest Not Applicable 13,639 22-Feb-2008 05:10 Not Applicable
X86_microsoft-windows-webdavredir-webclient_31bf3856ad364e35_6.0.6000.20777_none_53847a73cfdb2752.manifest Not Applicable 6,904 22-Feb-2008 05:13 Not Applicable
Davclnt.dll 6.0.6000.20777 53,248 22-Feb-2008 04:48 x86
Davclnt.dll 6.0.6001.22120 53,248 22-Feb-2008 04:47 x86
Mrxdav.sys 6.0.6000.20777 110,080 22-Feb-2008 02:21 x86
Webclnt.dll 6.0.6000.20777 196,096 22-Feb-2008 04:52 Not Applicable
Windows Vista, 64-bit versions
File name File version File size Date Time Platform
Amd64_20e635c1681381e11f153c5602d7ce72_31bf3856ad364e35_6.0.6001.22120_none_1214b5e1907a69d7.manifest Not Applicable 1,066 23-Feb-2008 01:55 Not Applicable
Amd64_ce343f0e558b8482b4c06c59d56abc19_31bf3856ad364e35_6.0.6000.20777_none_74bba66d8631a21a.manifest Not Applicable 2,126 23-Feb-2008 01:55 Not Applicable
Amd64_microsoft-windows-webdavredir-davclient_31bf3856ad364e35_6.0.6000.20777_none_ee4ab57a26c62f8b.manifest Not Applicable 5,087 22-Feb-2008 08:50 Not Applicable
Amd64_microsoft-windows-webdavredir-davclient_31bf3856ad364e35_6.0.6001.22120_none_f06001b623ca8366.manifest Not Applicable 5,087 22-Feb-2008 06:02 Not Applicable
Amd64_microsoft-windows-webdavredir-mrxdav_31bf3856ad364e35_6.0.6000.20777_none_6f2831729a4299a1.manifest Not Applicable 13,903 22-Feb-2008 08:48 Not Applicable
Amd64_microsoft-windows-webdavredir-webclient_31bf3856ad364e35_6.0.6000.20777_none_afa315f788389888.manifest Not Applicable 6,934 22-Feb-2008 08:52 Not Applicable
Package_1_for_kb948531~31bf3856ad364e35~amd64~~ Not Applicable 2,178 23-Feb-2008 01:55 Not Applicable
Package_2_for_kb948531~31bf3856ad364e35~amd64~~ Not Applicable 2,014 23-Feb-2008 01:55 Not Applicable
Package_3_for_kb948531~31bf3856ad364e35~amd64~~ Not Applicable 2,696 23-Feb-2008 01:55 Not Applicable
Package_for_kb948531_client_0~31bf3856ad364e35~amd64~~ Not Applicable 1,416 23-Feb-2008 01:55 Not Applicable
Package_for_kb948531_client_1~31bf3856ad364e35~amd64~~ Not Applicable 1,375 23-Feb-2008 01:55 Not Applicable
Package_for_kb948531_client~31bf3856ad364e35~amd64~~ Not Applicable 1,721 23-Feb-2008 01:55 Not Applicable
Package_for_kb948531_server_0~31bf3856ad364e35~amd64~~ Not Applicable 1,416 23-Feb-2008 01:55 Not Applicable
Package_for_kb948531_server~31bf3856ad364e35~amd64~~ Not Applicable 1,438 23-Feb-2008 01:55 Not Applicable
Update.mum Not Applicable 2,064 23-Feb-2008 01:55 Not Applicable
Davclnt.dll 6.0.6000.20777 71,168 22-Feb-2008 04:51 x64
Davclnt.dll 6.0.6001.22120 71,168 22-Feb-2008 05:16 x64
Mrxdav.sys 6.0.6000.20777 134,144 22-Feb-2008 02:29 x64
Webclnt.dll 6.0.6000.20777 213,504 22-Feb-2008 04:55 x64

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the Applies to section.

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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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• 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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kbfix kbexpertisebeginner kbpubtypekc kbqfe kbhotfixserver KB948531

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Microsoft Knowledge Base Article

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