Resolution Change... Autorun?

I currently use Autorun + a batch file to load up my apps and get everything running quicker with my USB thumb drive for work. My questions is... is it possible to change the display resolution using either a command line, or a small application that can be run from a thumb drive? This is all happeneing on Windows XP Pro machines with up to date Windows antiviral etc...

Specifically the machines at work all run at 800x600 for the proprietary software they use... when I log into one for anything more than a few minutes I always end up changing the resoultion anyway... was wondering if I could have it change to 1024x768 when I insert the USB stick and it autoruns... then either run the app again or something to have it change back...

Thanks for the help,

Howard