About Comodo Certified Application Database

Hello, everyone!

The current version of comodo firewall pro is :
Comodo Certified Application Database 3.0

When I installed Macafee Virusscan and comodo, I found:
If install comodo at first , both programs got malfunctioned;
If install Macafee at first then comodo, evertything is OK.

I think this may be related to the certified application mechanism of comodo which comodo will perform at the installing stage.

Actually, I found some people posted in other forums that they witnessed an intensive CPU usage of cmdagent.exe. But I never found this since I intalled comodo at the last place.And I guess this may be helpful to solve the problems met by those people.

Would you please shed some light on it?

Many thanks!