Hi,

I’m currently running Commodo’s free firewall, as well as Avast Free Antivirus. I was able to get around this conflict by completely disabling the following Commodo features:

Auto-Sandbox
HIPS
Viruscope

Avast! comes with HIPS, and an auto-sandbox features built in which conflict with the same features in Commodo’s free firewall, and with virus protection by Avast, Viruscope is unnecessary in my opinion.

I hope this information is helpful to you.