Xerberus86: i also use avast antivirus and i make an exception for every game i install.
BlaneckW: That's not good enough.
https://www.youtube.com/watch?v=JImcvtJzIK8 Are you saying Avast! is not a good enough antivirus program, or the information Xerberus86 has provided is not good enough?
You can also run the Age of Wonders 3 executable directly (on my system it defaulted to installing at C:\GOG Games\Age of Wonders III\AoW3.exe). However, not using the launcher has some issues like using the Guest profile and default audio and video options. You should be able to use the Profile settings ComboBox and Options screen to change these settings, but this is probably more of a pain than doing what Ravinius says he does in his original post.
If he can figure out what the command line options the launcher delivers are then he can just make a launch.bat file to run the game.