Windows Longhorn build 4050 (private/lab06 demo.031019-1809)

Windows Longhorn build 4050 (private/lab06_demo.031019-1809) is a private build of Windows Longhorn. This build was shown during Jim Allchin’s keynote at PDC 2003. It demonstrated the WinFX-powered Amazon application and its combined impact with both aspects of Avalon and WinFS.