We don't have a separate commercial license for our products. If you want to use them in a commercial environment as they are, it's ok for us, as long you don't re-sell the scenery to a 3rd party.
Which means, basically, if you want to use them in a commercial simulator operated by you, it's ok (of course you'll have to use P3D too), but if you create a commercial simulator, and sell it to a 3rd party with our products included as part of the package, that's against our license. Your customer in that case will have to purchase a normal license for our products under his own name.
We also have a Volume license, with discounts for users with networked PCs, but it can purchased only by single users running the sim on the same network, so they have more activations. The Volume License cannot be used to resell the license or to give it away, so it's NOT ok to purchase in bulk at a discount, and resell to 3rd parties and it's also not ok to purchase at Volume discount and share the installation between members of a Flight Club, Virtual Airline, School, Friends, etc...
