Short answer: don't bother, it's going to be too slow to be enjoyable.
Long answer: Install GeePee32, download the SNES emulator you want to use, use the virual SMC maker to put ROMs onto a virtual SMC (make sure to put them in the correct directory, usually gpmm/snes). Launch GeePee32, insert the virtual SMC card, launch the SNES emulator, load the ROMs, play at approximately 10FPS or so.