Thanks, Jazzman. Do you know whether it bypasses the soundcard "General Midi Misc." setting if I use VST also?

Has anyone tried using the Garritan PO Studio with BIAB for this purpose? It says on the Garritan website that it can be used with virtually any (notation) program that supports MIDI. Shouldn't this solve the problem regarding JABB not using General Midi? Granted, it's not as convenient as using a plugin, but if it works that's all I really want.