Microsoft KB Archive/867836

= You cannot access encrypted data when you log on to a domain-joined Windows XP-based client computer by using a new domain password =

Article ID: 867836

Article Last Modified on 8/29/2007

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APPLIES TO


 * Microsoft Windows XP Professional x64 Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition

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SYMPTOMS
Consider the following scenario:
 * On a Microsoft Windows XP-based client computer, you run a program that uses the Data Protection API (DPAPI).
 * The Windows XP-based client computer is joined to a Microsoft Windows Server 2003-based domain.
 * You log on to the Windows XP-based client computer as a domain user, and you change the domain password.
 * After you log off the Windows XP-based client computer, you encrypt data by using the DPAPI-based program.

In this scenario, you cannot access the encrypted data when you log on back to the Windows XP-based client computer by using the new domain password.



Service pack information
For more information about how to obtain the latest Windows XP service pack, click the following article number to view the article in the Microsoft Knowledge Base:

322389 How to obtain the latest Windows XP service pack

Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that this article describes. Apply this hotfix only to systems that are experiencing this specific problem.

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 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 XP, x86-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: kbexpertiseadvanced kbwinxpsp2fix kbwinxppresp2fix kbfix kbbug kbhotfixserver kbqfe kbpubtypekc KB867836

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