Ravenshield Server

Does anyone remember how to set up a dedicated RVS server that runs in background (ucc.exe) and i can play on it?

I know i can go ingame - multiplayer - create - set the checkbox to dedicated server - launch - now server is running and others can join.

The game closes when i start the server, so if i want to start RVS again steam says: game already running. Steam status also says that im playing RVS.

Some years ago i managed it but cant remember anymore.