When you try to add a Windows 2000 computer to a Windows NT 4.0 domain you receive:

Your computer could not be joined to the domain because the following error has occurred: The security database on the server does not have a computer account for this workstation trust relationship.

To add a Windows 2000 computer to a Windows NT 4.0 domain:

- You must be logged on with an account that has full Administrator privileges in the domain.

- The account that you logged on as must NOT have a space in the user name.