Removing incorrect Firewall rule

Comodo Internet Security - CIS Firewall Help - CIS
#1

I have Comodo Firewall running on 3 Windows PCs. Somehow I managed to create a rule on one of them that is blocking a particular program from running. (Program runs OK on the other PCs or if I disable Comodo firewall on this one)

How can I find that rule and remove it?

(program in question is TrendNet KVM Switcher)

#2

Open up the firewall application rules and look for the application in the list. Application Rules, Firewall Protection, Best Firewall | Internet Security