I thought the following may be of use to others: I just downloaded and installed Rack2Free on Windows 10. And it didn’t start at all. Googling showed plenty of others with the same problem, but no applicable solution. A pointer to the log file* was useful, though. Mine ended with a reference to an apparent attempt to query the JACK audio driver, which was not installed. Downloaded and installed the JACK Audio Connection Kit**, ran the control app***, started JACK, and lo and behold: Rack2Free opened ! There now seems to be no further need to involve JACK before starting Rack either.
- C:\Users\USERNAME\Documents\Rack2\log.tx ** Downloads | JACK Audio Connection Kit *** C:\Program Files\JACK2\qjackctl\qjackctl.exe