HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

I also use Avast + Comodo. For ages now. I'm happy with it. But after the recent Avast updates...
First, Avast wouldn't let me compile the next superpack_ru.dll,
I eventually found the section of code that Avast didn't like, changed it so that the functionality remained the same, and Avast calmed down.
And then there was patcher_x86.dll... But it seems that after the latest updates, Avast has calmed down.