Demolding:
Work one panel at a time.
Use a hairdryer (or heat gun) to heat the length of the molding on the panel you are working on. Don't heat it so much that it burns your finger when you touch it

at: but make sure the molding is warm.
Next, wrap a microfiber towel around a plastic putty knife. keep it tight. Peel up one end of the molding. This will be a little tough, but should be easy enough after heating. Peel up enough until you can fit the knife wrapped in the towel underneath the molding. Push the knife vertically along the length of the molding maintaining about a 20 degree angle to the car. While you're pushing with the knife in one hand, use the other hand to gently pull the molding away from the car as to help the knife glide on the underside of the molding. As you approach the opposite end of the molding in which you started, be careful as to not let the end of the molding dig into the door.
Okay, know that you've completed that part you will then be left with a mess of adhesive on the door. Purchase some GooBeGone. or 3m Adhesive remover. Either one of these products will help in the process of removing the adhesive. Use the microfiber towel to scrub away the adhesive. You can also use your fingers to roll the glue. Some of this "rolling" may be necessary (i did a lot of it). After all the adhesive is off you may or may not be left with a "shadow" of where the adhesive once was.. after a couple waxes, polishes, cleanings, ect. this "shadow" will disappear.
** Note: I suggest two people do this job. This allows for one person to continue heating the molding while the other uses the knife. This continuous heating allows for an easier detachment of the molding and also lifts more of the adhesive allowing for a lesser mess of adhesive after the molding is completely removed.
Hope this helps!