Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1986-2001 Microsoft Corp. C:\WINDOWS>netsh ras show user ?
show user [[name = ] username
[mode = ] PERMIT|REPORT ]
Displays user RAS properties.
username - the user's logon name. If none is supplied,
all users will be displayed.
mode - the mode for showing information. If no mode is
specified, REPORT is assumed.
REPORT - show all users.
PERMIT - show only users whose dial in permission is PERMIT