Client download?

I'm a 1.0 CE owner who also bought the ARR PC CE for the physical goodies, which now means I've got a spare game serial sitting around doing nothing. Is there a way I could pass the code along to someone else without also having to also lend them my install disc too? I checked Mogstation but I couldn't see any client download links :S

This link, I had it from a while ago, I am not 1.0 or legacy, just a completely new player, but I had to delete my client and re-install last night due to pc problems, so I know this link works:
http://www.finalfantasyxiv.com/playersdownload/na/

You're a star, thank you! *hugs*