Windows Longhorn build 4015 (Lab06_n)
| Build of Windows Longhorn | |
 | |
| OS family | Windows NT |
|---|---|
| Version number | 6.0 |
| Build number | 4015 |
| Architecture | x86 |
| Build lab | Lab06_n |
| Compiled on | 2003-04-03 |
| Expiration date | |
| Timebomb | 2004-04-11 (+374 days) |
| SKUs | |
| Professional | |
| About dialog | |
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 Compositing 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).
Gallery[edit | edit source]
Transparent windows produced by Desktop Compositing Engine
Transparency not using much CPU power
Fancy interactive graphical effects during video playback
Many animations shown on-screen
Animated and interactive windows
Windows "flap" when the user moves them with the mouse
"Flapping" windows not using much CPU resources
Screenshot
