Microsoft KB Archive/945764

= Vista clients are unable to join the domain with numeric top level domain name =

Article ID: 945764

Article Last Modified on 11/30/2007

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APPLIES TO


 * Windows Vista Ultimate
 * Windows Vista Enterprise
 * Windows Vista Business

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Source: Microsoft Support



RAPID PUBLISHING
RAPID PUBLISHING ARTICLES PROVIDE INFORMATION DIRECTLY FROM WITHIN THE MICROSOFT SUPPORT ORGANIZATION. THE INFORMATION CONTAINED HEREIN IS CREATED IN RESPONSE TO EMERGING OR UNIQUE TOPICS, OR IS INTENDED SUPPLEMENT OTHER KNOWLEDGE BASE INFORMATION.



Action


Result
You are unable to join a Windows Vista computer to an Active Directory domain. This happens when the top level domain (TLD) name ends in all numeric characters, for example, mydomain.123. If you PING this name (ping mydomain.123) from the Vista computer, the name is not resolved to the IP address. However, if you PING this name appending with the &quot;.&quot; (ping mydomain.123.), the name is resolved.



Cause


Resolution
You may work around this issue by skipping the TLD check. To do this, set the ScreenBadTlds registry value.

1. Run Registry Editor (regedit.exe) and browse to the following registry key:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters]

2. In the right pane, create the following value if it does not exist:

Value: ScreenBadTlds

Type: REG_DWORD

3. Double click the ScreenBadTlds value, and sets its data to 0 (0x00000000).

4. You can try to join the Windows Vista computer to the domain again.



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Keywords: kbnomt kbrapidpub KB945764

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