Windows Longhorn WinHEC 2004 Aero demo build

Windows Longhorn build 4069 is a Milestone 7 build of Windows Longhorn. It was shown during WinHEC 2004 when Jim Allchin used it to demonstrate Aero transparency in Longhorn. This build uses the "Tree" wallpaper found in later M7 builds.

Three high resolution screenshots of this build from the WinHEC 2004 Longhorn Driver Model presentation were shared by ReflectiaX on 30 April 2021.