I use Xming and Putty to remotely log into my Linux desktop over a secure SSH connection. Since I use xdm for the X11 login screen, I had to set up xdm for remote login. I made sure /etc/X11/xdm/xdm-config had this setting:
I changed /etc/X11/xdm/Xaccess to allow any connection:
echo "*" > /etc/X11/xdm/Xaccess
I installed Xnest on the Linux machine.
On Windows, install xming and X11 fonts. Start the Xming server.
Xming.exe :16 -clipboard -multiwindow -nolisten inet6
Then, start putty, enable X11 port forwarding and connect to the Linux box. Once you are logged into the remote terminal, start Xnest:
Xnest :16 -ac -geometry 960x720 -once -query 127.0.0.1
A window will pop up showing your lovely Linux destkop. Now, enjoy your Linux applications on Windows.