Get PowerTracks here http://www.pgmusic.com/powertracks.htm
Get WineBottle here http://winebottler.kronenberg.org/
1. Run WineBottle.app
2. In Advanced select the downloaded powertracks.exe and Install it but don't run yet.
3. Use the settings in the pics.
4. Move the created PowerTracks.app to you Application folder.
5. Run PowereTracks.app
6. Select Midi & Audio Devices.