[PLUG] How do you run Linux apps across a LAN from Windows?

[Mike Leone <turgon@mike-leone.com>]

Say I have a Gnome app on a Ubuntu server on my LAN. And I want to 
access this app from Windows. I don't want to run the app on Windows, 
using Cygwin or whatever; I want to connect to that Ubuntu server and 
run that app from Windows, just as if I was starting up an app on a 
Windows server.

Using free software, since this project isn't big enough to justify 
spending any money on, to buy software for the Windows desktops.

How would you do that? I know how to run Windows apps in Linux (locally, 
not across the LAN); I want to do the reverse - have an icon on my 
Windows desktop, that starts up a Gnome app that is running on a 
separate host on the LAN.

My searching has been less than fruitful. If there's a detailed HOWTO or 
something somewhere, I'd appreciate it if somebody could point me at it.
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