background processes

How do I ran process in background on windows? I have a bunch of Windows boxes in a computer lab and I need to run a program on them in the background. I tried the linuxy &, but that worked about as much as a nigger. Anyone care to help?

if it's not what you're currently using, and it's running, it's in the background.
wtf are you trying to run? no fbi here.

keyloggers ftw

if it's a decent keylogger, it shouldn't have an obvious window or tray icon up in the first place.