Immunet is supposed to be a "companion AV" to run with your primary AV (I use AIS 6).
Here's the thing: after installing Immunet my post-startup RAM ("resting RAM") is LOWER than with just Avast alone. And when I run tests, Immunet always reacts before Avast.
That led me to wonder whether Immunet was shutting down some Avast processes? Would that explain the decrease in RAM? Sure is weird.