Hi Alex, I didn't mean your question was OT, I meant my interjection! I was simply trying to say that once you can use RBUtil then the pool issue is a non-issue.
If you could maybe have a sighted user configure the TTS options in RBUtil (a one-off thing), then it sounds like you'll be able to use it via the menu bar: Actions > Accessibility > Create Voice File, then ALT-I (for Install). The following keystrokes are equivalent: ALT-S, A, V, ALT-I. None of this should (of course) put you and Dominik off fixing up the Jaws issues, but I hope it's helpful - probably easier than mucking about with Cygwin, I'd think. pondlife