Access data from third party remotes not recognised by the normal bluetooth stack.
Very work in progress, currently known to work with cheap black third-party Wii remote from eBay.
Does not work with official remotes!
Use Zadig to install the WinUSB driver on your bluetooth device.
Run wiimote_btstack.exe and wait for startup, then press Enter to start bluetooth discovery and hold down 1 + 2 on the remote to start pairing. Once a new remote has been paired it can be connected again without pairing by pressing any button on the remote.
The app creates a named pipe ("\.\pipe\wiimote0", "\.\pipe\wiimote1"...) for each remote connected.
For an example implementation see https://github.com/simlrh/wiiuse/tree/btstack