Install Virtual pc, install win98 using virtual pc, install redguard on win 98, ny mounting redguard iso with daemon tools, then go cd, use physical drive.
For aguide on using virtual pc, see http://www.snesorama.us/board/showthread.php?t=35391
Redguard itself dl'ed from snesorama.us.
Special thanks to Atton, and Otaku-Helz.