Windows Longhorn build 4093

Windows "Longhorn" build 4093, with a build tag of 4093.main.040819-1215, is the last winmain compile of the original "Longhorn" project (based on the Server 2003 RC1 code-base) before development was reset. It was leaked on 2006-08-28, shortly after the closure of the original OSBetaArchive, and was labeled a farewell release. This build is highly unstable, which was sadly typical of most "Longhorn" builds.

This is the first and only Milestone 9 build. It was the last pre-reset "Longhorn" build to be leaked, and one of the last to be compiled. This build cannot be booted up normally; this can be done using build 4033's Preinstallation Environment.

It still has the Slate theme, albeit with a new wallpaper called "Tree". Many applications and features are unstable works-in-progress, and might not function as intended. However, most working features and applications can be launched using the Run command. The development reset occurred at 9pm the same day this build was compiled and development moved to a new code base, which eventually became Windows Vista.

Features
This build still includes the M8 Longhorn wallpaper, which is not entirely unexpected, considering this is the first M9 build, and among the last pre-reset builds compiled.

Avalon Applications
It includes an Avalon-based Windows Movie Maker application. However, this version is highly unstable, and the debug prompts and error messages that plague it make it nearly unusable. This build also marks the return of the Avalon-based Display Properties dialog first seen in build 3683. However, it is highly unstable, and most of the links simply redirect you back to the XP-style dialog.

Misc.
This build is the last build to include the original Sidebar. It would be reintegrated into Vista, but only relatively late in the development process. This build is also among the last to include WinFS.