What are the proper settings for Avast! and Comodo when running them together?

I have Avast! and Comodo firewall installed on my PC and want to know whether there are particular options for each that should be either turned on or turned off to avoid conflicts. For instance, I note that both Avast and Comodo have “root-kit” protection built-in and running, which caused me to think that with the these two standalone products that have overlaps, what settings do I need to refine to make sure they run most efficiently together. Thanks for all suggestions and insight.

there is a big thread in the General Forum on Comodo and Avast
see that first
cheers
wyrmrider