That's one of the reasons I bought the CD. Being on dial-up, no doubt, the download would've been interrupted.
I also always save program passwords (or registration codes) to Notepad, and put the installer and the notepad Doc in it's own folder. That way, the password is always with the program. I then back it up to CD.
Even if i had high speed internet, I'd be leery of downloading a program, especially if it only gives you 1 chance.