hanz remember you need COH to play EIR atm, OF won't work with it...
hopefully you still have the original still on your computer, and the disks were needed to be inserted, as dash said, simply because relic was down, it checks for internet verification of your cd key everytime you start the game, if it doesn't get that it asks for cd insertion.
Ahh you have to know what i did. I bought COH OF awhile back thinking id get COH too. But i didnt. So therefore my friend yesterday gave me his CD key for regular COH. So im playing COH while really owning COH OF