Run As System in XP
Here's how to run any exe as system
So…how do we do that? In XP, 2000, Server 2003…you can do this very simply. You will need to be logged in with an account that has administrator privileges. Open a command prompt (Start, Run, CMD). At the command prompt type the following line. Replace 01:23 with the current time in 24 hour format + one minute. i.e. if it is 3:42 in the afternoon, enter it as 15:43.
at 01:23 /interactive cmd.exe