Most of those unreleased versions, were alpha and in house beta names. I know for a fact Longhorn is Vista, Longhorn was just the codename for it during build and debugging time. and Whistler is XP. Im going to assume that Chicago and Neptune were the same thing for Win 95 and (I think it was.. not gonna rewatch it for the one spot) 3.1.
God im such a nerd.... im gonna go play WoW.....
Made by DP
R.I.P. Evan Tanner, you will be missed....