Hey Ron, I forgot to mention, here is a site that is dedicated to this stuff. . . . It's called security tango, and it gives a step by step process to clean and secure your computer. . . it starts with Stinger, goes into ad-aware, spybot and others. . . it's an amazing and educational site. . . .
www.securitytango.com
It's setup by a local computer guru who does a radio show, newspaper Q&A, etc. . . . so many of his questions he gets are about this subject, he set up a site specifically dealing with it. . . be sure to check it out. . . good luck. . .