If the game won't let you select your monitor's native resolution, navigate to C:\Users\[User]\AppData\Roaming\Command & Conquer 3 Tiberium Wars\Profiles and edit the Options.ini file manually.
: Sometimes, applying the latest game patch can serve as a no-CD solution. The Command & Conquer 3: Tiberium Wars patch v1.9 includes several fixes and might help. Command And Conquer 3 Tiberium Wars 1.9 No Cd --
Using a No-CD crack required precise version matching. If a player updated their game to 1.09 but applied a No-CD crack designed for version 1.04, the game would fail to launch because the memory addresses referenced by the crack no longer matched the updated game code. Command And Conquer 3 Tiberium Wars 1