Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1986-2001 Microsoft Corp. C:\WINDOWS>netsh ras add registeredserver ?
add registeredserver [[domain = ] domain [server = ] server ]
Registers the given Windows 2000 computer as a RAS server in
the Active Directory of the given domain.
server - the computer name of the computer to be registered as
a RAS server. If no server is specified the computer
from which the command is issued is assumed.
domain - the domain in which the given server should be
registered. If no domain is provided, the primary
domain of the computer from which the command is
issued is assumed.