It should give you a key even if it’s free, does it not?
Unless I am completely missing something (which admittedly IS a possibility) I do not believe I received any sort of code. It just loads a download page with a link to your setup instructions, offers a link to follow you, and that's that... :(
...ya, I actually just tried it on another browser where I am not logged in. When you click download and then 'No thanks, just take me to the download' on the next page, it doesn't even ask for my email address. Just gives me the file to download...no code... :(