As far as I can see, I've done everything necessary to get it working. I've tried it on a total of 3 machines (all laptops, of various brands) and they all behave the same. Am I missing something here?
edit: in case it's helpful, my service code is DC4D-9AFD-01C3-1C5B.
edit #2: partially solved - turns out my iso_filename.txt had an extraneous ".txt" tacked onto the end (thanks windows!). removing the extra extension gives me as-intended operation on the optical drive under windows, and lets me boot into the named iso. however, I still can't get into isosel, which I think is just a double-up of http://reboot.pro/17406/ . sorry for the unnecessary thread, and I'll be following along with the other thread for a solution.
Edited by lycurgus, 28 August 2012 - 07:32 AM.