Badmouth, I would be interested to know how to run Auto Hot Key automatically while the emulator is running. I tried to do in in Pre-Commands but it didn't work. Well... it launched AHK but wouldn't launch the emulator. Got too confusing so I gave up.
Haven't tested this (I'm at work), but it should go like this:
#IfWinActive, Supermodel - *
~2 & ~4::
Process, Close, supermodel.exe
return
It would be put in the windows start folder so it starts with windows and
would always be running.
You can copy and paste the first three lines over and over again in the same script, substituting any other emulators you need to close.
If you ever need to do anything complicated with autohotkey, post in the software forum and Nitz will usually blow your mind.
He's the man around here when it comes to ahk.
EDIT: Alternatively (looking at one of Nitz's scripts), I don't think it would hurt anything to just tell autohotkey to close it whether Supermodel is running or not since you're using the same combination to close everything. Just list every program you'd want to close after ~2 & ~4::
~2 & ~4::
Process, Close, supermodel.exe
send {esc}
Process, Close, zsnesw.exe
Process, close, fceux.exe
return