Microsoft KB Archive/945145

= On a Windows Vista-based computer, you may be prompted for your passport credentials every time that you try to access documents on a WebDAV site from a new workspace =

Article ID: 945145

Article Last Modified on 11/26/2007

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APPLIES TO


 * Windows Vista Enterprise 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 Premium
 * Windows Vista Ultimate

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SYMPTOMS
Consider the following scenario:
 * You are running a Windows Vista-based computer.
 * You try to access a Web Distributed Authoring and Versioning (WebDAV) site that is located on a server that uses passport authentication.

In this scenario, you may be prompted for your passport credentials every time that you try to access documents on the WebDAV site from a new workspace.

This behavior occurs even after you save your passport credentials in Credential Manager.



CAUSE
Windows Vista uses Windows HTTP Services (WinHTTP) to access the WebDAV site. WinHTTP must set a specific flag to enable the key ring for passport authentication. However, when the WebDAV redirector calls WinHTTP, the redirector does not set this flag as expected. Therefore, Credential Manager cannot obtain your passport credentials.



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:

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

Prerequisites
No prerequisites are required.

Restart requirement
You do not have to restart your 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, x64-based versions


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



MORE INFORMATION
For more information, 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

Keywords: kbfix kbqfe kbexpertisebeginner kbhotfixserver KB945145

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