Is it possible on Windows Server 2000/2003/2008 machines to see which user rebooted the server?
I have found the shutdown event in the System event log, but it does not show which user initiated the reboot.
In the System event log, filter by event id 1074, this will show by which process and on behalf of which user a reboot was initiated.
This was tested on Windows Server 2008.
There should be a log at:
%windir%\system32\LogFiles\Shutdown
(which should be C:\WINDOWS\system32\LogFiles\Shutdown on a "standard" Windows Server 2000/2003 install)