Barry,
I have installed and tried the
SFZ player I linked to in the above post. I loaded the 32-bit version of the player onto one of the BIAB tracks, opened a soundfont file and used a BIAB midi style to play it. It worked fine.
While I haven't tried it using an external keyboard (mine isn't running at the moment), by loading the 32-bit SFZ player into the Thru slot in the VST/DXi set up, you will be able to use it with the keyboard. Whether or not lag between playing the keyboard and hearing the sound will be a problem, I do not know.
Regards,
Noel