I know this is a simple thing, but i haven't seen any around, and i felt the need everytime i had to start or stop it manually plus auto start, so i'm sharing the one i did to whoever needs it, it´s a modification from the one that comes with apm. I´ve implemented the basics for testing status and stuff, change it to your taste.
Instructions commented on the beginning of the script, but usually all it takes is to change the APMSQLDIR value to your installation directory.