Microsoft KB Archive/331651

= UPN Box in Active Directory Users and Computers Contains Corrupted Data =

Article ID: 331651

Article Last Modified on 10/27/2006

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Service Pack 3
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Service Pack 3

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This article was previously published under Q331651



SYMPTOMS
When you use Active Directory Users and Computers to copy a user, the UPN box next to the user name contains corrupted data instead of @ .com. If you click the arrow next to the box, you see that the field contains the correct user principal name (UPN).



CAUSE
This problem occurs because the UPN attribute contains information that is not valid about the user object in Active Directory directory service. This attribute must contain @ .com. However, in this case, @ .com is missing, which leads to the corruption. You can check this attribute by using Ldp.exe or AdsiEdit.msc.



WORKAROUND
To work around this problem, change the UPN attribute for the user object to the correct @ .com string by using Ldp.exe or AdsiEdit.exe.



RESOLUTION
To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack



STATUS
Microsoft has confirmed that this is a problem in Windows 2000. This problem was first corrected in Microsoft Windows 2000 Service Pack 4.

Additional query words: corruption invalid characters

Keywords: kbbug kbwin2000presp4fix kbdirservices kbpending kbwin2ksp4fix KB331651

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