Behavior Shield is only aimed at monitoring “suspicious behavior”… by whatever (heuristic??) means avast defines “suspicious”. In contrast, WinPatrol monitors a plethora of items. I am a long time very-satisfied user of WinPatrol. Personally, it’s one of the first programs I install on any computer I use, and I would not want to be without Scotty. If you’ve used it, and are unsatisfied (for whatever reason), that’s of course your prerogative.