Adding a Vista PC to an NT 4 domain

1. SRVMGR.EXE on the PDC and add the computer name of the Vista PC.

2. On Vista PC run, secpol.msc then Under Local Policies > Security Options, Change the following two settings

- Domain Member: Digitally Encrypt sign secure channel data (always) - change to disabled

- Network Security: LAN Manager authentication level - change to "Send LM and NTLM - use NTLMv2 session security if negoitated"