--==M37R01Dz M0Dz: SNES on your Wii==--
--==Preparing your ISO File==--
Make sure you have cygwin1.dll in your windows/system folder
It is included in the above download.
Extract the gcisomaker.rar to c:\
Add all the roms in ZIP or SMC to c:\gcisomaker\bootdisk\roms\
Optional – if you are burning only a few roms and your ISO is under 400mb you may want to add some padding. To do this, you will want to add a large dummy file (a movie or something can be used as well) copy it to c:\gcisomaker\bootdisc and rename it PADDING.XXX
In the GcIsoMaker folder run Create_GC_BootableDisk.bat
Once complete you will be left with gcdic.iso
Use your burning software of choice to burn the ISO, I use CloneCD.
And finally Test it out.
One bug that I found, make sure the GC controller is Plugged in before booting up the disc, if you using a WaveBird make sure it is fully turned on before booting the SNES disc.