You must have the original dedicated server:
Do NOT(!!) unzip in cs2d folder.(Beacuse of dlls).
After first start you must choose the cs2d folder.
Then you have to restart the program, and have fun! :D 

Linux:http://www.unrealsoftware.de/files_pub/cs2d_dedicated_linux.zip
Windows:http://www.unrealsoftware.de/files_pub/cs2d_dedicated_win.zip

Credits: Buksee (Development),Nabekura (Testing),Prosymbols(Icon),Ithaline-RUS(Testing,lot of ideas,description)