Hey!!!

Here's the brilliant, cheap, legally binding copyright trick, works if you are in the united states. Best of all, it is very simple.

All you do:

1. Put your product in an envelope, seal it up.
2. Take it to the post office.
3. Have it mailed to your address by certified mail.
4. Put it in a safe place, and absolutely do not open it.

If you have to take it to court, bring the envelope. The postal certified-mail stamp is federal-government, legally binding proof that you were the first to create this product. This will provide legal protection if you go to court, if someone were to dispute the ownership of the product.

You can also include a notarized document stating that it is your creation/property as well. Putting an EULA on the published product and copyright notice should also be valid.

If you want to obtain a real copyright, you might want to borrow/buy a book from Nolo Publishing, who makes a great DIY series of legal books, complete with all the forms you need.

But the postal certification is absolutely valid legal proof that it is yours, and a US judge must recognize it as federal government certification in a legal dispute.

Good luck