Windows Longhorn build 3683

Windows Longhorn build 3683 is one of the earliest Longhorn builds. It was one of the earliest build to introduce the Plex theme and the Sidebar. One of the notable changes was that the Windows logo was only white, not colored like all the versions of Windows before it. Windows Explorer has been partilly changed, like the templates in the My Documents and My Pictures were notably different as well as the Open and Save as dialog boxes also included the template, incorporating aesthetic changes and a few new user interface options.

WinFS
An early revision of WinFS was also included, but very little in the way of a user interface was included, and as such it appeared to early testers to be nothing more than a service that consumed large amounts of memory and processor time.

Windows Sidebar
This build was one of the earliest to include the Sidebar.A new "Sidebar" was also present, which contained many of the gadgets that would much later be seen in Windows Sidebar, such as an analog clock, slide show, and search capability. An option in this version of the sidebar also made it possible to move the Start button into it, and disable the traditional taskbar entirely.