This is strange, because CP uses WMP stack (even the blank screen wich is buggy like hell when I press volume up/down). Maybe you could make a plugin, wich would make many things easier (in case of there would be a guide for plugins but there isn't afaik). Anyway I bumped your(?) thread

I just don't get the whole coreplayer, it's as slow as a one man open-source project without feedback and such... but it's not free :/
I just tried to make it work on my P525 (didn't install it yet because I use CP and HF). I deleted the shortcuts to HD audio and HF, removed the pairing, reseted my HBH-DS980, selected it in your app then discover and pair. I got this:
Cannot find any unpaired BT watch.
Searching for unpaired devices ... ("MBW-" (0000) etc
What did I do wrong?
Maybe your app doesn't support the Broadcom 1.7.1.9813 BT stack?