Virus Control can directly read from "banks" that exist on your hard drive as MIDI files (each "bank" contains 128 patches, so that's a pair of physical banks for the Snow eg. RAM 1+2). Check out the User Manual, pages 58-9, and 61.
"If you wish, you could easily download every Virus Patch ever
published on the Access site, drop them into the Patches folder,
and have instant access to them all via the Browser."
I can't seem to find bank files for the patches as listed in the manual's appendix though
