Microsoft KB Archive/841105

= You cannot access encrypted files after you log on by using a password that was changed programmatically in Windows Server 2003 =

Article ID: 841105

Article Last Modified on 7/24/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
 * Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Web Edition

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SYMPTOMS
When you log on to a Microsoft Windows Server 2003-based computer that has a password that was changed programmatically, you may not be able to access encrypted files. Additionally, you may receive an error message that states that access is denied.



CAUSE
This problem may occur in either of the following scenarios:
 * The password for the local user account was changed by using the Active Directory Service Interfaces (ADSI) ChangePassword method in a Visual Basic script.

In this scenario, the Lsasrv.dll file does not correctly parse the local computer name that is contained in the Visual Basic script.
 * The password for the local user account was changed by using &quot;\\ComputerName” as the first parameter of the NetUserChangePassword function.

In this scenario, the computer name is not parsed correctly because the program calls the NetUserChangePassword function with a non-NULL value that has a &quot;\\&quot; prefix. For example &quot;\\NETBIOS .&quot; If the value that is passed to the NetUserChangePassword function is NULL or NETBIOS, this problem does not occur.



WORKAROUND
To work around the problem that was caused by the second scenario in the &quot;Cause&quot; section, reverse the password change that you made. Then, perform the password change again by using a NULL value for the NetUserChangePassword function. To do this, follow these steps:  Call the NetUserChangePassword function with the following parameters to change the password back to the previous password:

NetUserChangePassword(\\NETBIOSLOCALMACHINENAME, ...)

 Call the NetUserChangePassword function again with a NULL value to change the password again.



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 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

Restart requirement
You must restart your 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 tool in Control Panel.

Windows Server 2003 32-bit versions
  Date         Time   Version            Size  File name -  19-Nov-2004  01:45  5.2.3790.212     64,000  Eventlog.dll 19-Nov-2004 01:45  5.2.3790.233    801,792  Lsasrv.dll 18-Nov-2004 19:56  5.2.3790.233     13,312  Lsass.exe

Windows Server 2003 64-bit versions
  Date         Time   Version            Size  File name -  18-Nov-2004  12:21  5.2.3790.212    167,936  Eventlog.dll 18-Nov-2004 12:21  5.2.3790.233  2,039,296  Lsasrv.dll 18-Nov-2004 06:20  5.2.3790.233     15,360  Lsass.exe



Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements.



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

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MORE INFORMATION
For additional information about the terminology that is used in this article, 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 query words: VB

Keywords: kbqfe kbhotfixserver kbbug kbfix kbwinserv2003presp1fix KB841105

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