This build string appears on a large amount of files included in the Longhorn SDK (LDK) which was released at PDC 2003.
This build leaked 1 March 2004.
Version number on a leaked Windows Imaging Utility file (xImage.exe)
This build showcased improvements made in the new Longhorn Display Driver Model (LDDM) in contrast to the XP Driver Model (XPDM). One video of... Read more →
The copy of this build leaked 20 December 2008 installs using the old i386 installation method. This build includes multiple features earlier seen in builds c... Read more →
According to Paul Thurrot this is the build number of the build shown in conjunction with 4067 at Jim Allchin's ke... Read more →
This is the best known Longhorn build, it is generally known as the 'WinHEC 2004' build as it was given out there. It is from the Milestone 7 stage, still featu... Read more →