I have a copy of Command & Conquer: The First Decade, which contains all the old Windows 95 C&C games. Those games could be made to run on Windows 7, but only with considerable tweaking and the addition of an old DLL file. I could not, however, get them to run on Windows 8.1.
Then, they came out with Command & Conquer: Ultimate Edition, which says it’s been reworked to be compatible with modern operating systems. Sure enough, I can play even the original Command & Conquer on Windows 8.1 with no tweaking required.
What I’d like to know is, how did they do it? As far as I can tell, the games themselves are exactly the same. What modifications were made that allowed them to run on Windows 7 and 8?