Well, sort of.
This is an old howto that I apparently missed. I really know so little about Windows administration that finding gems like this makes me really excited :-)
Anyway, it's possible to connect to a remote machine's registry, alter the data in it, then remotely reboot the machine so that it can come back up with the server running. That's pretty smooth!
Here are the details.
I know I'm missing tons more stuff like this. What are your favorites?