Overview
Use “Hamachi” or similar to create a new private network your friends can join. Allow all “Hamachi” stuff and “Microsoft DirectPlay8” in firewall settings. In windows network adapter settings you will see “Hamachi” and “Your network adapter connected to the internet” then. Before starting the game, disable “Your network adapter connected to the internet”, so that “Hamachi” ONLY is enabled! Start game and setup your server for multiplayer. Now the IP address of your private “Hamachi” network should be shown under IP! If so, create! When multiplayer has finished creating process DONT forget to reenable “Your network adapter connected to the internet” so your friends are able to connect to your server/VPN IP.