Age of Wonders - GoG Version
- Install game as usual
- Use Launcher.exe as a starter
- Download Indeo Video driver
- Go to Configuration → Miscellaneous → Run a .exe file in this virtual drive → select iv5setup.exe
once installer is started use Custom installation (!) uncheck everything except Indeo video 3.2 codec and Indeo audio codec
The game supports many different resolutions, so you might be able to play in in full-screen mode rather than just in virtual desktop mode by selecting your desktop resolution.
Make sure you disable the virtual desktop if you do so.