http://classic.xfire.com/communities.../news/5910447/
Hello Michel-
Thank you for contacting Activision Customer Support.
Hey.
I wanted to apologize for some incorrect information that you were given about the COD 2 servers.
They are still up and running.
However, at this time there appears to be an issue with the key validation, and this is something that is currently being worked on. We are working hard to restore this service and want to thank you for being a loyal COD 2 player.
If anything changes I'll be sure to let you know. Thanks!