I did like you said and deleted the game folder and reinstalled the game, and when I was going to set compatibility mode, I noticed that the program was already set to run in compatibility mode, and couldn't be changed to not run in that mode. I also ran as the administrator and when the game was installing, a message popped up that said: "The program cannot find the file specified" and then a file directory made up of a jumble of characters. I checked and the game had installed, but, nothing changed and the game still won't play the .wav files. Also, I ran the newly installed game in compatibility mode, and the game still plays,
but nothings changed.