I recently opened my dusty box of old games and was excited to find my original CD keys for Diablo II and Diablo II Lord of Destruction. A helpful person on this site pointed out that I could enter my keys on battle.net and download a modern version of the game compatible with my OS. I did that, but now when the installer asks me for my CD key it mentions a 26 character key, and the key on my CD case is not nearly that long. I'm looking at the case and it's clearly a 16 digit sequence. Do I pad that with zeros, or is there somewhere else I can find the key I need?