Actually, WizRealm, that isn't true. If he purchased the product he can do whatever damn well he pleases with it as long as he doesn't distribute it. If he wants to set it on fire in his front yard he can do that. If he wants to reverse engineer it and use it's shader code on text on his Windows background he can do that too. Reverse engineering is not illegal (in most countries).

Where he ran into problems is when he distributed it. In most countries distributing a copyrighted work without permission is copyright infringement.