I am guessing you aren't using a centralized authentication system?
If not, the best bet would be to script it. Have a script connect to the remote machine as the determined user and run the defined command (changing the password to whatever variable you give the script) and exit back out. If you give it a list of the servers, it could blow through them all pretty quickly assuming you have good connections to them.
Last edited by MS3FGX; 04-13-2008 at 12:15 AM.