Can't open MS Wavetable Synth on Windows 10

Windows
1

midiOutOpen fails on Windows 10 when trying to open the built in wave table synth. It gives error 1 which is unspecified error.

Stackoverflow thread (http://stackoverflow.com/questions/31752786/midioutopen-on-windows-10-using-microsoft-gs-wavetable-synth-fails) says you need to call CoInitializeEx first, but I tried that and it didn’t have any effect.

Anybody else run into this issue?

2

The new WinRT MIDI API can communicate with MS Wavetable Synth.

If you don’t use any of the Bluetooth functionality it’s stable.