Hi - I just installed 2017 and it downloaded sforzando. Anyone have a clue as to how to use it with RealBand?

the stand-alone program doesn't appear to work with midi files, and midi and wav is all we have. It mentions SF2 files.

when i try to use it in RB as a VSTi plugin like CoyoteWT or SampleTank, I get that "Not a valid VST plugin" message.