Microsoft KB Archive/887710

= Your domain user name may not be accepted in Windows Server 2003 or in Windows XP =

Article ID: 887710

Article Last Modified on 8/29/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows XP Media Center Edition 2002
 * Microsoft Windows XP Professional x64 Edition
 * Microsoft Windows XP for Itanium-based Systems Version 2003

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SYMPTOMS
When you enter your domain credentials in the applicable logon dialog box, your domain user name may not be accepted. This symptom may occur when you try to start certain programs, such as Microsoft Outlook. It may also occur when you use the Connect As component to access a shared folder or another a shared resource.

For example, when you use the Connect As component to access a shared folder, you receive a notification message in the Connect As dialog box that is similar to the following:

Examples:

User Name

username@domain

DOMAIN\username



CAUSE
This problem occurs when the user principal name (UPN) suffix contains only numbers. For example, a UPN such as 1234 generates this problem. The credential manager component in Microsoft Windows Server 2003 and in Microsoft Windows XP does not support a numeric-only UPN suffix.



Windows Server 2003 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

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 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 -  22-Oct-2004  16:31  5.2.3790.224      162,816  Credui.dll

Windows Server 2003, Enterprise Edition for Itanium-based Systems
  Date         Time   Version            Size    File name -  22-Oct-2004  16:31  5.2.3790.224      162,816  Credui.dll

Windows XP 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

File information
The English version of this hotfix has the file attributes (or later) 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 XP 32-bit versions
  Date         Time   Version            Size    File name -  20-Dec-2004  18:22  5.1.2600.1615     158,720  Credui.dll 20-Dec-2004 18:22  5.1.2600.1615     681,984  Lsasrv.dll 20-Dec-2004 18:11  5.1.2600.2586     163,840  Credui.dll 20-Dec-2004 18:11  5.1.2600.2586     721,920  Lsasrv.dll

Windows XP Professional 64-Bit Edition (Itanium) versions
  Date         Time   Version            Size    File name -  20-Dec-2004  18:22  5.1.2600.1615     158,720  Credui.dll 20-Dec-2004 18:22  5.1.2600.1615     681,984  Lsasrv.dll 20-Dec-2004 18:11  5.1.2600.2586     163,840  Credui.dll 20-Dec-2004 18:11  5.1.2600.2586     721,920  Lsasrv.dll



WORKAROUND
To work around this problem, change the UPN suffix so that it does not exclusively contain numbers. For example, use &quot;1234.com&quot; as a suffix. For additional information about UPN suffix support, click the following article number to view the article in the Microsoft Knowledge Base:

243629 How to add UPN suffixes to a forest



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 additional 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

Additional query words: balloon

Keywords: kbqfe kbhotfixserver kbbug kbfix kbwinserv2003presp1fix KB887710

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