WindTerm supports X11 forwarding, which allows a user to start up remote applications but forward the application display to the local machine.
Internal X display
WindTerm uses XMing as an embedded X server. WindTerm can start XMing automatically when X11 forwarding requests with no extra configuration.
External X display
WindTerm supports external X server too, just uses “IP:DisplayNum.ScreenNum” to point to the location of your local X server.