Briefly, since I have a busy day : I tried to install FARR on Ubuntu Linux with Wine. It... RUNS ! It searches correctly, etc. The only problem is that I can't open any file with it or run any program (but can copy the path, etc.) ... So, a bit useless as it is, but interesting that it basicaly runs.
So... Mouser, if one day you decide to port your app to Linux, the Wine way might be an interesting shortcut!
(I also tried to install AHK : it runs too, but haven't really played with it)