I HAVE READ THE HOW-TO THREAD
I'm trying to run Red Alert 3 via C&C Online on Windows 7. So when I select Red Alert 3, the game starts up. I've been told I have to select Red Alert 3 again, so I do that, and I get the topic title's message. I've made sure the launcher's properties are set to "compatibility mode XP service pack 3", and it still gives me this error. I'm also "running the program as administrator", so I did that.
I also ask: how will I know that my account nickname has been validated in the database and therefore am able to use it online?