I tried some connects with Andy and Skip and can confirm the sound card version of G-TOR works with a real G-TOR modem (my KAM-XL). Throughput got up to 200 baud and of course no errors due to the ARQ.
The GUI is basic on the sound card program and not particularly intuitive but it seems that sound card G-TOR is possible on Windows. 73 Sholto K7TMG
