Nothing seems to get through my setup , using Panda Platinum with built in firewall .Also have allways used Ad-aware & Spybot , I find what one will miss the other will find , but they dont pick everything up .I still use an expired version of Webroot Spy Sweeper, now that still finds things others have missed and I'm seriously thinking of buying this program .It is excellent .I would never recommend using McAfee or Norton ,they were good , infact I had allways used McAfee till Panda came along , but there to intrusive nowadays and I've heard of lots of problems in trying to remove them.