AH which OS and Browser and Firewall?
Spyware terminator is not in the same class with threatfire and SSM
I recommend you look into them separately as well as the Virtual Machines
Forget the Heuristics hype
Avast -gen method works just fine without all of the false positives that you get with aggressive heuristics (even with a whitelist)
You like Heuristics and are surfing where first day exploits are likely to be found (naughty naughty)
try a bit-defender on demand scan
Avast will co-exist with superantispyware, malwarebytes antimalware, spybot search and destroy
Free real time run at boot up antispyware is hard to find
you can try Spybots SD-Helper if you have IE installed (even if you just use it for updates and Kaspersky scans) and T-timer however t-timer will take some resources first time it runs (there is no free lunch)
If you try spyware terminator use the custom installation and do not load unwanted toolbars etc
Scotty the win patrol watchdog is light on resources and will pop up must changes to your system allwing them to be reversed or dealt with- this is a scanner not a preventer like SSM or TF
report back you experiences
