Posted June 30, 2020
In your Desperados installation folder, in the 'game' folder, find game.exe and set its compatibility settings to Windows 98, and put the ddraw.dll file into the 'game' folder where game.exe is.
Link for the ddraw.dll: https://github.com/narzoul/DDrawCompat/releases/tag/v0.2.1
Link for the ddraw.dll: https://github.com/narzoul/DDrawCompat/releases/tag/v0.2.1