Good morning Cierroth! This is the first time I heard about this issue, you can try running the .exe in compatibility mode and maybe one of the options will make it! Let me know if you are able to fix it, if not contact me and we'll find a deal in another way. :)
I am running it on compatibility mode (Win XP service pack 2) as the windows suggested, but the game is still mute. I will try the other compatibility modes, then.