1. Download the tool here
https://cnc-online.net/en/account/

2. Register an account

3. Install the tool

4. After installing Launch C&C Online

5. Look for a dropdown menu at the top that says "Hook".

6. Click it then click "Red Alert 3". It should have a tick next to it now.

7. Close C&C Online and start Red Alert 3 from your Steam Library. It should open C&C Online instead of going into the game.

8. Click "Red Alert 3". The game should start.

9. Go to versus > online

10. At the log in menu. Use the same credentials you used to register in cnc-online.net (REVORA)
    You can pick any name as long as you think it's unique.