Windows Longhorn build 4039 (Lab06 n.030827-1717)

Windows Longhorn build 4039 (with a build tag of 4039.Lab06_n.030827-1717) is a Milestone 6 build of Windows Longhorn, leaked on 22 August 2007. For all its instabilities, the Desktop Composition Engine is known to work in this build and can even render the Windows Aero transparency, although it is extremely buggy.

Setup
Setup is mostly similar to the earlier compilation of this build.

New features and changes

 * A prototype of the Phodeo feature is included in this build.
 * A new Communication History shell folder is also implemented.

Installation
Some copies of this build's installation media cannot be booted normally due to a call to a non-existent index in the  by. To install this build in this case, either upgrade from a previous build or use a WinPE from a previous build.