Windows Longhorn build 4015 (Lab06 n)

Build of Windows Longhorn
OS family
Timebomb2004-04-11 (+374 days)
Works in

Windows Longhorn build 4015 (Lab06_n) is an unleaked Milestone 5 build of Windows Longhorn. This build was shown at WinHEC 2003 to demonstrate the new Desktop Composition Engine which produces fancy graphical effects without relying on the CPU and slowing down the system. It is a GUI/end-user interface test build, as it is from the Lab06_n branch. The same system that was shown at WinHEC 2003 was later used during PDC 2003 alongside a system running build 4018. A screenshot of this build is also known to exist, extracted from a Microsoft presentation about the Avalon graphics stack (TW04036_WINHEC2004).

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