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Article ID: 162657 - Last Review: January 7, 2015 - Revision: 1.1

This article was previously published under Q162657
This article has been archived. It is offered "as is" and will no longer be updated.

WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.


When Remote Access Clients connect to a Windows NT 4.0 Remote Access Server (RAS) computer without specifying a domain name, the local domain will by default be used to authenticate the username and password.

A change has been made in Windows NT 4.0 Service Pack 3 that allows the administrator to specify the domain used to log on such users by setting a parameter in the registry. To set this parameter, complete the following steps:
  1. Start Registry Editor and go to the following subkey:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services \RASMAN\P
  2. Choose Edit Value from the Edit menu and use the following information:
    Value Name: DefaultDomain
    Data Type: REG_SZ
    Value: DomainName (not longer than 15 chars)
  3. Restart the computer for the new setting to take effect.

  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 4.0 Standard Edition
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