@kalciumklorid I split this off to a new thread. Do not post your problem in a three-year-old topic that's barely related to what you're talking about.
Anyway, "Command & Conquer: The First Decade" isn't "a game". It's a collection of games covering a time span of about 10 years. That's 10 years of different game engines and targeted operating systems. As you can imagine, each of these games has their own specific problems and solutions running on modern operating systems. It would be really helpful if you'd specify exactly which problems you have with exactly which games, not to mention which Windows version you're trying to run them on.
That said, Command & Conquer 1, Red Alert 1 and Tiberian Sun have all been upgraded with community-created unofficial patches that fix a lot of their bugs and compatibility problems. For Red Alert 2 there's a more general patch that solves a lot of its graphics problems. You can find them here:
Command & Conquer 1:
Red Alert 1:
Tiberian Sun:
Red Alert 2:
- The graphics system patch DDWrapper is known to solve the "black screen" issue.
Download the zip file and extract "ddraw.dll" and "aqrit.cfg" into your game folder. Then, open the configuration file "aqrit.cfg" in Notepad, change the "ForceDirectDrawEmulation" option to 1, save the file, and the game should work.
It is strongly advised to install all of these.