Gosh, I never saw any mention in any of the gift messages that we needed anything to make any of the items work. So now it will be necessary to go through the entire collection and analyze each item. Generosity has been perverted in the Poser community. If someone gives you a Poser item for FREE, you're supposed to accept the item without question, and be eternally grateful. It doesn't matter if they're giving away keys to a car that you can't use unless you buy the car. The stuff is FREE!!!! Now shut up and accept your gift. Get Real.