I've got it working on the "Origin" Platform without too-much hastle/which I'm happy about. Took a little practice to get the hang of it though. Sometimes, it can have a bit of an Attitude when you try to run it. Here's a few pieces of advice that might help some of you out....
1: Make sure the game IS run-directly out of the Start-Tab (Find your "Origin" installation) and click over the the sub-menu + select "My-Games"
2: Once your C+C is running..(you Can still "Esc." past the videos) Stop-once you get to one of the inner Game Menus.
3: Alt/Tab back to your Desktop (The Game will just sit there in the backround, this switch wont hurt it).
4: Locate your Kickazz "MrAntifun" Trainer that hopefully is ready to use/on your desktop, and open that bad-boy Up. (I'm assuming it's designed to also open this site automatically/so I just shut the browser down when this happens. Leaving just the trainer window up.)
5: Finally - The trainer. Since your game is already running in the backround. This trainer should reflect this - and should read "Game is On". Furthermore, once you start checking off the Hotkeys, the checkmarks should pop right on-nice and clear for ya, while you hear a nice female voice report to you-that you've activated a selection. **NOTE**- Sometimes, it takes a few presses of the Hotkey to get a selection to truely-Activate. I've found that it's best to have the actual Trainer on the screen, so you might be absolutely-Sure it took. Better to be Safe-than-Sorry when your heading into a major Engagement. Following the activation of your F1/F2/F3, you can just minimize that window(or leave it, up to you). Locate your active game on the bottom of your screen(taskbar), and give it a single-click. You have now just returned to your game-a True God.
***Thanks "MrAntifun" for Putting the Smile back on my-Face***