hmm, i think you can you know.
i haven't tried it, but in theory:
make the bat file.
make a shortcut to the bat file
right click the shortcut, then click into the shortcut key box on the properties control
now press the button you want to assign on the remote control, it should register in the shortcut key box.
click ok
there you go,
man i'm awesome*
regards,
Magnets
*actual awesomeness depends on whether this works as I've just made it up and haven't tested it