The virus repeats an audio message - Congratulations, you won - about every 5 minutes, and then tries to pull up a couple of windows. It is slowing the entire system (Windows XP) down, and seems to be getting worse. I have run Spybot and Advanced SystemCare4, and fixed all problems they found, but this virus remains. Has anyone encountered this before, and if so, what can I do to get rid of it. Thanks for the help.