Interestingly, tuneup3.gif is pushing "Security Booster and McAfee Virus Scan" using the same technique
http://www.inklineglobal.com/adsales/graphics/tuneup3.gif
while tuneup4 doesn't apear to be bothered to offer a solution to the same problem
http://www.inklineglobal.com/adsales/graphics/tuneup4.gif
Yes, its Sunday afternoon and I've got too much time on my hands...