I used ZoneAlarm to solve similar problems as everytime a prog tries to access the internet it asks me to give permission. If I refuse permission then it simply kills the program. I put it on all p.c.s that I build for friends/family now as it does such a good job as a firewall and a catch-all for those already on. There is also a free scan available at the ZoneAlarm site if I remember correctly, which can be quite handy.