That particular remote uses a one of a kind protocol that's very hard to learn and is nothing like Microsoft (MCE or RC6) codes. So none of those codes will work. No built-in codes will work. No registry changes can make them work. I highly recommend you get a different remote and dongle that specifically says it uses MCE, RC6 or Ortek protocol. If you can afford an MX-3000, you can certainly afford a decent MCE dongle.

The JP1 community (Vicky) figured out this protocol a few years ago which turned out to be close to a Mitsubishi protocol but not quite, hence throwing off your remote's learned signal analysis. Details are in the thread below. But I wouldn't waste any time or effort trying to convert it to pronto hex.

[Link: hifi-remote.com]

If you insist on making your old dongle work, you'll have to figure out how to create an IRP for it in order to use IRScrutinizer to generate the pronto hex. That part is way over my head, but if you post in the thread above, someone may be able to help you figure it out.