@True Indian:
I had tried that also in the past, and the firewall had major issues with Avast 8 Free.
Also appears that if I remember right, have seen a LOT of complaints about them
NOT getting along with each other. I have my machine as witness to this.
It is why I eventually gave up and went with straight CIS.
And yes, I even had tried to get them to “ignore” one another, but still problems persisted.