I gave it a shot from the Foobar2000 side by posting for help here http://www.hydrogenaudio.org/forums/index....5&start=425
But no joy so far, and given how responses seem to work over there, we should not expect any reply if we haven't received one by now. Perhaps someone can attempt another post in the Foobar2000 development forum to find out what approach is needed to reference selected files - there must be a way for this or many Foobar2000 components and scripts could not function on selected files. I'm reluctant to repost myself because of the ToS to not post the same need in multiple forums. I don't thnk posting something in another forum is inappropriate, because the need for a way to refer to selected files is certainly not unique to the foo_run component.
And if you have a better way to express our need in a new post in Foobar2000, all the better!