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