John does raise a good point. We are talking about a pretty sensitive data transfer and the USB extender is somewhat of an unconventional method. I've mostly used in situation where if the data transfer would fail or if problems occur there is no possibility of "bricking" a device (or locomotive in this case).
The consumer loader program doesn't take much of computer to operate. You could pick up a used laptop with OS windows XP or newer for $50 or so to get the job done.
