connecting from a X-client to a cygwin X-server

from the my-outsourced-brain-dept:

• Install cygwin. Be sure to select the X11 base package
• open a cygwin shell
• start X: $ startxwin.sh
• you will get a xterm window on your Windows box
• type $ xhost + to disable host security, so that other hosts can connect to your server
• Enable X port forwarding in PuTTY ( Connections / SSH / Tunnels )
• connect to the remote machine and start the program that requires X

If all goes well, it will show up on your screen. If you get a “Xlib: connection to “:0.0” refused by server” error message, you have forgot to disable the security by typing xhost +.