You are probably right Clements, but I just worked out how to do the .bat files, so I show people how to do it. I'll post this in EmuTalk as well...
Open up Notepad and type in this code...
cd directory
call gcemu filename.gcm
And save the file down as a "
.bat" file.
You can make one of these for each game and run it by just opening the ".bat" file. I hope this is useful...