We use OpenVPN for LAN emulation. Windows download: https://swupdate.openvpn.org/community/releases/openvpn-install-2.4.4-I601.exe
To connect, contact Voker57 to get your personal config. After receiving it, right-click it and choose "Run OpenVPN on this config" (windows) or run sudo openvpn --config <myconfig.ovpn> (linux)
On Windows, you will need to manually set metric of your virtual adaptor to 1. How to set metric in windows 7