Windows Longhorn 6.0.4071 lab01 20040127

Windows Longhorn 6.0.4071 lab01 20040127 or simply referred to as Windows Longhorn Build 4071 is a lost version of Windows Longhorn that was complied either on the evening of January 27, 2004 or the very early morning of January 28, 2004...It has been leaked several times, but every-time it was removed. It had multiple bug fix updates over a week, here is the list.

Bug fix builds
It is believed to have removed several features from earlier Longhorn builds and is called "The first reset"