TL;DR: Download this .. rename the ddraw.dll to mdraw.dll ... plop it into the game folder, replacing the bad dll. https://github.com/FunkyFr3sh/cnc-ddraw/releases My game was frozen when I started it (beyond the main menu) even though it worked fine the first time I ran it (but never afterwards, no matter how many reinstallations.) I have tried very much every solution I could find .. but nothing worked. Turns out, the ddraw.dll which has been bundled into this game is the source of all problems, does not work on Windows 10. I did not discover this solution, I found the answer on a different forum for a different game - but it worked fine here. Cheers to the person whose name I don't remember.