Vista - Vista on NT 4.0

Hi all;

Yes I still have a 4.0 domain around, but cannot log on to that particular
domain.

Yes Vista gives me the Active Directory/DNS issues, but with NetBIOS over
TCP/IP enabled, I should be able to logon to the 4.0 domain. Even when I try
to change/add that account to the domain, I get that AD/DNS issue.

Sure I can "map" a drive over to a file server and login with a domain
account and pw but is simply "logging" into a 4.0 domain not available with
Vista as MS is moving all to AD and DNS?
This happens on business and ultimate versions of Vista.

Thanks,
Steve