I have been lookin into the Virus B too here. I have one too, next to my Virus Ti Polar.
I have downloaded Emagic Sounddiver (very old software) and use it in a Virtual Machine on Windows XP. I was thinking of using my old mac mini G4 for that, but problem is midi interface should still be accessible on machine with the DAW. With a Virtual machine I can easily switch my midi interface between host and VM.
Never did research for modern software that has support for older synts. There could be some, but this was a quick solutions for me.