It will show you whatever might be running, but doesn't have removal capabilities. Your best bet would probably be to Google whatever it finds to see if you can find manual removal instructions. Be warned that rootkits can be very, very difficult to remove from within the runtime environment; if you have one, you may need to boot from a different kernel (such as a Linux or WinPE LiveCD) to remove it. Many people advise that the only sure cure is to fdisk/format and reinstall everything from scratch.
Ug, doesn’t sound like much fun! Thanks for your reply. I actually am burning Rootkit Revealer to a CD to use later. Hopefully AVG Anti-Rootkit can fix the problem without me having to reformat and start from scratch. I’m not even sure it’s a rootkit, just speculating based on the fact that it’s pretty much invisible to every anti-virus/spyware software out there.