Well, I have full admin rights on all University systems (games design course FTW), but what I was thinking of was actually installing it to the pen drive, and having that as the LiteStep directory. That way, I thought it should be possible to run LiteStep from there, and have nothing more to do than simply change the shell back to explorer when I'm done.

Also: DeViLbOi, could you possibly give me a guide as to how to go about that?
I'd rather not do it by trial and error on the Uni computers.