Need help writing a simple .bat file

Basically I need a .bat file to open Dolphin Emu and then launch a rom. But when Im done playing the game and I press ESC it only closes the rom and keeps to Dolphin window open. I would like to be able to press ESC and then the rom closes along with the Dolphin Emu.

Right now I have this
Dolphin.exe /e "D:\Emulation\Gamecube\SUPER MARIO GALAXY.iso"
Then I save it as a .bat

That works to launch the game but when I exit the game by pressing esc the dolphin window is still up.

Does anyone know what else I can include in the bat file so when I press esc it just closes dolphin completely? Any help would be greatly appreciated.

Or if there is a better forum to ask this question could anyone refer me to that website