Here is a excerpt of the Freetrack Homepage:
Quote:
FreeTrack can output head tracking data directly using TrackIRâ„¢, SimConnect and FSUIPC interfaces, programs that support these interfaces are regarded as having FreeTrack support. General input devices can also be emulated, specifically mouse, keyboard, and joystick (via PPJoy).
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Seems to be that FT is still using NP software.