Windows 2000 64BIT (Cancelled)

Windows 2000 64BIT was supposed to be a windows operating system for Windows 2000 running 64BIT, as 64BIT was starting to become extremely popular. But in 2003, the first officially released 64BIT editions of Windows were Windows Datacenter Server Limited Edition and also Windows Advanced Server Limited Edition, which were basically based on the pre-release version of Windows Server 2003, which came out later after that.