AOL users will know that there is now a 'Spy Zapper' that pops up when you sign on, and searches for Spyware. In my case, it always reports in the negative.
Same yesterday. When I signed off I ran the AOL Spyware program which sits on the desktop. It reported three such programs, one being described as a Trojan! Now come neither the Zapper, nor Norton NIS picked up either?
I sometimes wonder just how safe this computer is!
Only this week I was called out to look at a problem with a PC on which AOL Spyzapper had been kept up to date & run daily, which had picked up & removed some entries. I then installed and ran MS AntiSpyware which found & removed 145 files & entries (some quite serious) and Adaware found another 6 after this! The PC now works OK again.
I don't think any anti-virus is perfect, nor is any anti-spy ware or pop-up blocker come to that. You need to have one of each running alongside a firewall and the do a weekly scan with another set of programs to make sure you have not had something slip through the net. A belt & braces approach.