Hi and welcome to the Bome community!
I recommend you look at this posting. For me, it as been the best way I’ve been able to deal with the Korg Driver problem of not recognizing more than 10 MIDI devices on a system. I also doesn’t require messing with the Windows Registry which I generally to only at last resort.
Steve Caldwell
Bome Customer Care
Also available for paid consulting services: bome@sniz.biz