I downloaded and rain hijack this. It found things but nothing that said system doctor. As the other stuff was excite, which I have as a home page on one of my browsers, and microsoft things I left them alone. I next did a deep search, putting search info in 2nd box down, and found 2 places where system doctor was listed. One was under definitions in ad-aware, expected, but the other was in the cookies for Firefox. I deleted the cookies and that seems to have solved the problem, for now. I also delete any and all possible sites in my bookmarks where I could have picked up my friend. As far as protection for this type of stuff I have Ad-aware - for me this works great with IE and Avant but does not seem to work with firefox. I also use AVG anti spyware and spybot s&b. I don't believe any of these are real time, but they should have found this insect. I was wondering if someone could recommend a low cost or free real time anti spyware program that will work with Firefox. Thanks Steve. -- Please remember to trim your replies (including this sentence and everything below it) and adjust the subject line as necessary. To unsubscribe or change your email settings: //www.freelists.org/webpage/pctechtalk To access our Archives: http://groups.yahoo.com/group/PCTechTalk/messages/ //www.freelists.org/archives/pctechtalk/