From: John Beckett 

John Cuccia  wrote in message
news::
> Can't an NT4 xDC be upgraded to W2K without installing Active
> Directory, and won't the W2K box server as an NT4-style domain
> controller in that case?

If you run W2k Server Setup on an NT4 PDC, the result will be a W2k domain
controller (DC) holding a new W2k domain. By definition, that is Active
Directory. The W2k DC will act as an NT4 PDC for downlevel clients (e.g. if
an NT4 member computer wants to change a user's password, it will look for
the NT4 PDC - the first W2k DC will emulate that function).

John

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