I use the spyware warrior web site to verify a good anti spyware product.
Spyware Doctor is on their trusted list:
http://www.spywarewarrior.com/rogue_...tm#trustworthy
the rouge anti spyware programs outnumber the good atleast 50 to 1:
http://www.spywarewarrior.com/rogue_...e.htm#products
my personal setup is:
Ad aware SE free version
Zone alarm firewall
Norton anti virus
Proxomitron../proxy/pop up stopper/java filter and more
a good hosts file
frequent updates of all above + windows updates
No problems in several years......Knock on wood
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