There's a another way that may interests you: adding pc games to your main gamelist and loading them like if they were normal roms. I recently added my mugen.
Create a text file called mala.cmd in your MaLa folder. Now, in options, basic, mame executable, instead of mame.exe write the path to your .cmd file (eg. d:\mala\mala.cmd). Edit mame.cmd and add this (edit your mame path). MAME will be used for all roms, but for 'mugen'.
if %1==mugen goto mugen
d:
cd\
cd d:\mame
mame %1 %2 %3 %4 %5 %6
goto end
:mugen
d:
cd\
cd "d:\Mugen"
mugen.cmd
cd\
goto end
:end
--
Now edit mame.xml and add something like this:
<game name="mugen" sourcefile="mugen.c">
<description>Mugen Fighting Evolution</description>
<manufacturer>Stormrider</manufacturer>
<year>2008</year>
<chip type="cpu" tag="maincpu" name="PC"/>
<chip type="cpu" tag="audiocpu" name="PC"/>
<display type="raster" rotate="0" width="320" height="240" refresh="60.000000" />
<sound channels="2"/>
<input players="2" buttons="6" coins="1" service="no">
<control type="joy8way"/>
</input>
<driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="unsupported" palettesize="65536"/>
</game>
--
Add this to catver.ini
mugen=Fighter / Versus
--
Create a text file in your roms folder and rename it to mugen.zip
Refresh your rom list and create again the game lists.
Now your Mugen game is listed and can be run. I decided to run it with mugen.cmd instead of mugen.exe because it sometimes fails to close on exit. So my mugen.cmd has a final line with exit. If you want to have a snapshot for your mugen, press print screen when in the game. Create a new image in Photoshop, paste, crop the picture and save it as mugen.png in your snaps folder. Yo can do this with other pc games.
