VSWC is a Super Nintendo emulator for the Macintosh and MS-DOS.
VSWC was once the leading SNES emulator for any platform - and indeed once the only SNES emulator for the Macintosh. However, it was discontinued some years ago by the author due to lack of time. It can only run a few ROMs, and it does not support sound. For a decent SNES emulator, I would recommend Snes9x.
 
Like the xNES project, VSWC is now only of historical interest. I cannot you with any help for this program.