DaveNF2G said:
Selling your only copy of a program is not "distributing." Under copyright law, the "first sale doctrine" erases any control the seller might have had over disposal of the copy, whether it's a book or a program or any other form of expression.
Actually, district courts in CA, TX, and MO have issued differing rulings on this subject. In the most recent case I could find,
Davidson & Associates v. Internet Gateway Inc (2004), the court said "'The first sale doctrine is only triggered by an actual sale. Accordingly, a copyright owner does not forfeit his right of distribution by entering into a licensing agreement.'" A copy of that ruling is
here. (This case _also_ described explicitly accepting an EULA, but that was separate from the above quoted ruling.) One item of concern is whether the software is actually
sold, or whether the user is merely licensed to
use the software, with ownership remaining with the copyright holder. If the latter, then title and ownership of the software never passes to the user, and the first sale doctrine cannot apply (according to the MO district court).
In any event, I don't have a problem with a registered user transferring their registration key to another. However, it's likely in the original registrant's best interest to involve me in the transfer, so that the new buyer can get their own name/key data. This is because the name/key data contains, at the very least, the original licensee's name and email address. Depending on how the registration was performed and if/when a user requested a replacement key, the data might also contain a street address, phone number, etc.
-Don