One point that does stand: If the merchant provides an installer program, they can certainly include a complete and seperate licence. As the software provided by Renderosity is an installer executable, the Renderosity licence would apply to that installer executable and not the content the installer provides. In other words, you would not be able to transfer the licence to the installer program, which is what the Renderosity licence would cover. On the other hand, the installer itself could present a completely seperate licence for the content which the consumer would have to click 'I agree' to in order to continue the installation of the software. Interestingly, if this agreement provided certain rights including the licence to the content, a Renderosity tester testing the product would be required to delete the installer but, by terms of the second licence for the content itself, not the content.