Before you start make sure there's nothing blocking your connection between computers, turn off firewall and check connection between computers typing in cmd 'ping {ip_of_second_computer}'
1st run Viewer '/Remote-desktop-viewer/RemoteDesktopViewer/bin/Debug/RemoteDesktopViewer.exe'
Type port of server which you want to connect and click 'Listen'
2nd run server 'Remote-desktop-server/RemoteDesktopServer/bin/Debug/RemoteDesktopServer.exe' Type ip and port which viewer is listening. To verify connection click 'Connect' if it'll be successful you are able to start sharing your screen by clicking the button 'Share my screen'