Okay we all know how it goes, you download a set of snes roms and xsnes9x doesnt see them,
so upon closer inspection (forum complaining without using the search)
you discover that your roms dont have the smc file extension.
now what you gotta do is you rename them to have smc behind the filename,
and
no we are not going to rename them one by one (you gotta be crazy to do that)
and
no we are also not going to download a special program that does it for us (lazy bastards)
this example is going to show you how to rename your roms that are in a dir called snesroms located on c:\
now remember that this only renames the unzipped roms, so you might wanna unzip your roms should they be zipped.
you can always rezip them later by using my
other guide.
now on with the extension adding!
start up a program called
command promptit should be right on top of your

if you cant find it its located at c:\windows\system32\cmd.exe (it comes with every version of windows)
now start it and do exactly what i did on the picture below.
here's the same picture but in yellow i wrote an explanation of what i did.

There ya go, all set.