Hi Lawrie, thanks for your input. Are you in western Australia? If so we are in the same time zone. I am using Windows Vista Home Premium. I tried what you suggested by selecting no MIDI input and output and with Roland VSC selected for DXi output. I get the same error message and no sound output. Just to try something different I selected MME for audio output instead of the ASIO I was using and then everything worked no matter if I selected "No MIDI/Sound output", "Microsoft MIDI Mapper", or "Microsoft GS Wavetable Synth". It seems my Sound Reality ASIO driver for my Sigmatel audio chip set is causing the conflict.

Has anyone here gotten the MIDI output to DXi/VSTi to work using ASIO in BIAB? I just tried ASIO4ALL as an alternative. I get all the same error messages and even a message that BIAB stopped responding but then it begins to play music. Seems BIAB is very unstable when using any DXi/VSTi with ASIO. If you don't select "ASIO always on" in the ASIO driver it marginally works if you don't mind dealing with all the error messages when you press play. If you select "ASIO always on" the program just crashes. RealBand works just fine with DXi/VSTi and ASIO.

AMD FX-8350 4.6 GHz, 16G RAM, solid-state drives, Windows 10, Scarlett Audio Interface, 2021 BIAB & RB, FL Studio Producer, Studio One Producer, Melodyne Editor, Ozone Advanced.