Re: Does anybody remember
Windows 2000 (NT version 5.0) was a complete rewrite of Windows NT (from version 4.0) and brought improved stability and a new driver model. Furthermore it was a lot slower and needed more memory (barely ran in 64 MB of RAM). The most notable feature it brought was Active Directory and support for 64-bit processors (DEC Alpha, Intel Itanic and eventually AMD x86_64). The Terminal Server functions were now standard. I forget when they added IPv6 support. There was an HA edition. Windows XP added a couple of screw-ups like the licence activation feature.
Windows Longhorn was the ultimate OS with WinFS and Palladium security and the Aero Macalike GUI. The latter appeared in Vista, along with UAC (whatever that is) and support for MAC in the ACLs (and SMB2 and standardised IPV6 and a different driver model). The main selling point would be HyperV, but the HPC edition went nowhere.