Honestly, though, I'd probably push back at the notion of adding a user to thousands of servers' sysadmin role. If the servers had been set up correctly in the first place, and the user truly did need sysadmin access, I'd just add them to the windows group that already has sysadmin access.
One change done in Active Directory.
That's assuming this user actually needs sysadmin access to thousands of servers (which is what the OP is saying and in itself makes me worry).
Brandie Tarvin, MCITP Database AdministratorLiveJournal Blog: http://brandietarvin.livejournal.com/[/url]On LinkedIn!, Google+, and Twitter.Freelance Writer: ShadowrunLatchkeys: Nevermore, Latchkeys: The Bootleg War, and Latchkeys: Roscoes in the Night are now available on Nook and Kindle.