No any one can use the files you just need to have vue 6 ple then you can just export the scene then import it back into vue 6 the one you bought. It may take a while but if you really want the model then you would do it. It is not encyped. I am saving up money so I can soon get the full version of vue. But intell then you will just have to export them then import them back in. It really isn't that hard.