get Absolute Uninstaller, or any startup manager of downloads.com absolute uninstaller has a built in startup manager clay
or if you have Win XP, go to Start->Run and type msconfig, there you can stop programs from starting up. HijackThis! also works.
or Ccleaner Ccleaner.com it cleans files on your computer saving space and you can uninstall programs and look change start up programs its real easy ^_^