I bought Dawn of War: Dark Crusade in the Steam sale so I can play as the necrons or tau in multiplayer. I don't want to install the whole expansion when I already have Soulstorm, so I downloaded a tool off the internet that will unlock the races provided I have a valid Dark Crusade CD-Key. So all I need now is the key. However, on selecting Dark Crusade in my library and clicking "CD-Key" on the right hand side, a message window pops up that simply says "Requesting Key..." and never actually gives me one. How do I fix this and get a CD-Key?