Edit: Sorry its red alert 3 only.
What version of the game are you using?
Steam
What kind of error do you get and at what time? Be as precise as possible!
Can't connect to Red Alert 3 online <-- this is the exact error prompt
What operating system are you using? (Windows 8, Vista, etc)
Windows 7 64 bit
----- C&C:Online Launcher Start -----
Game: Red Alert 3
Red Alert 3 Install Path: D:\SteamLibrary\steamapps\common\Command and Conquer Red Alert 3\
Started game with: "Management Engine Components\DAL;C:\Program Files\Intel\Intel® Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel® Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel® RA3.exe "
Caught CREATE_PROCESS_DEBUG_EVENT from Red Alert 3. Detaching...
Found game.dat process. PID 6116
*** Starting CA public key patching routine ***
CA public key is expected value.
Successfully patched CA public key.
*** Starting hostname hooking routine ***
Injecting DLL into game.dat process...
Result of injection: Code -1073741582
If it helps, I am using avast and I have already added C&C online folder to my exclusion.