There it is ! The support for the Widcomm bluetooth stack on the desktop side.

Download it here : Bluetooth Remote Control for Windows Mobile 0.7.0-Beta1

For now, this is a beta release, but this should work fine. You can now use Bluetooth Remote Control along with your A2DP headphones :)

On the dev side, working with a event driven API with C++ can pose some problems... The widcomm API is pretty different from the Microsoft stack. I have to admit, I prefer the Microsoft way of doing things, where you can call a blocking Receive method, instead of being notified asynchronously by some random thread, where I prefer managing my own threads. Also, handles are not closed if you application crashes, leaving a connection or an advertised service as an orphan. Annoying during the debugging...

Well, it works now. Maybe next time I'll try to updated the mobile side...