thanks anyway for the tip.

I have not had a problem with ASIO in Band In A Box.

The driver is the one that comes with FLStudio12 but I think you can download it direct from asio4all.com

I have USB interfaces from Behringer and from Mackie. I also have a PCI soundcard MAudio Audiophile 2496. All of the inputs and outputs are recognized in both Band In A Box and RealBand. Sound quality is fine in BIAB. But as noted, playback in Realband gets a lot of noise and distortion

At least, the setting for MME is local to RealBand and does not force all my other apps to using MME.