lol I ain't even a window's user per se, but might I suggest
-ad-ware
http://www.lavasoftusa.com/software/adaware/
Spy Sweeper
http://www.webroot.com/wb/downloads/index.php
which should do the job for you & give you fairly accurate results. Certainly mroe accurate than some! Good Luck!
By the way I hope you got LW: from here:
http://www.limewire.com/english/content/download.shtml otherwise god knows where it came from but a scam version by a scam site.