The Dawn of war series has recently been reverted to the steam servers. Which means I can't play multiplayer on these games, unless they are on steam. I have copies of Dawn of War 1, Winter Assault, and Dark Crusade. I have activated the original Dawn of War, using the CD key.
But I am unable to activated Winter Assault and Dark crusade using their keys.
The original Dawn of War was a 16 character long code, the expansions are 20 characters long.
Why can't I activate the expansions, and if I am unable to, can I just never play this game multiplayer again?