Windows Longhorn build 3683

Windows Longhorn build 3683 is a Milestone 3 build of Windows Longhorn. It is currently the earliest available build of pre-reset Longhorn, which was originally leaked on 19 November 2002 by the beta group xBetas, with their branding visible in the setup handle and in a modified wallpaper present within the install media (advertising for their now long-gone IRC channel).

This build is one of the earliest to introduce the blue Plex theme, which would be used all the way up to Milestone 6. Builds from this timeframe are also notable in that the window captions are centered when the Plex theme is enabled, which is reminiscent of early Windows versions and which was also later used in Windows 8, Windows 8.1, up to some earlier pre-release builds of Windows 10. The Windows flag on the Start button has been changed to monochrome white in order to fit in the new theme. The login screen was changed to include a clock in the top-right corner and to use a silver and dark blue color scheme, although it still gets to keep the same overall layout as in Windows XP. Windows Explorer was updated with a new Plex-styled task pane and new templates for the My Documents and My Pictures directories. A new file copy dialog has been implemented, although it doesn't use Avalon. The fold/unfold buttons have been added to Windows Explorer when the Show in Groups option is enabled.

A preliminary version of the Avalon user interface framework is included and is used to implement the new Windows Sidebar and Desktop Properties. The Sidebar is empty upon enabling and similarly to later builds, it can be combined with the taskbar, which enables a new Start button design also found in later builds. A new virtual desktops feature is also accessible from the Sidebar. Desktop Compositing Engine is also included with this build, although it is quite unstable and is only known to work on real hardware. When enabled, it renders open windows with a translucency effect.

This is the last build to have a version of Program Manager that is still usable. Starting with build 3706, it turned into a stub which just redirects to Windows Explorer instead.

Setup
Although this build still uses the i386-based installation method used in previous versions of Windows (and as such still utilizes the same minimum requirements as Windows XP), the ability to install Windows by invoking  from MS-DOS has been removed, and attempting to do so will result in the following deprecation notice, even if the   debug parameter is passed over to the command line:

"Thank you for trying to install Windows Longhorn 2004 using DOS 1985.

Installing Windows using is no longer supported. Please refer to http://winweb/setup/winntexe.htm for further information."

This removal is likely attributed to development of the then-new Windows Imaging (WIM) format, which had been in the works from as early as March 2002.

Avalon
This build includes an early version of Windows Presentation Foundation (WPF), codenamed Avalon, which unlike versions found builds later than 3713, is built against the original .NET Framework 1.0 and can therefore be installed on Windows XP or other systems supported by the framework.

Windows Trust Manager
This build features the new Windows Trust Manager, which can be seen when launching a copy of  obtained from a later build, for example. In this case, it does nothing more than asking the user for permission to install the aforementioned app.

WinFS
An early revision of WinFS, referred to as "Windows Future Storage" in  and in the "Windows Components Wizard", is also included in this build, 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. In reality, WinFS is responsible for a few of the new features found in this build, such as the "My Contacts" library and Pivots. Thus, disabling WinFS will make it impossible to open the aforementioned library, as well as accessing the Pivots functionality.

Windows Explorer

 * Windows Explorer features a huge number of enhancements: three new buttons have been added to the toolbar, namely Zoom, through which it is possible to change the size of the icons in the current folder; Details, which acts as a toggle for the new preview pane; and Pivots, which allows grouping of items such as pictures or music by a specific property, such as "Music Grouped By Album". It should be noted that when selecting a pivot, the system will not filter the contents of the current folder, but it will rather filter the content of the whole hard drive.


 * A new breadcrumb bar has taken the place of the traditional address bar and the tasks pane on the left has changed as well: other than featuring a new background which fits the new Plex theme, it also includes a new "Find" section with a TextBox, through which it is possible to filter the contents of the current folder. A new Explorer Bar called "Media" has been added, however it fails to load a non-existent page called "Media Places". The media controls are shown, however. A few new options are also available in the "Folder Options" dialog, such as "Check box select".


 * The "New" context menu allows the creation of two new items, namely "Photo Album" and "Playlist".
 * The previously mentioned "My Contacts" library can be enabled via "Customize Start Menu" dialog. It is possible to create new contacts through its context menu, but this feature is very rudimentary, and once created it is possible to edit just their name and e-mail address. Double-clicking a contact will open an IM window.
 * A friendlier version of the more advanced Device Manager, the "My Hardware" folder, appears by default in the Start menu.

New file copy conflict resolve dialog
This build has a new file copy conflict resolve dialog, it can be enabled by setting the DWORD value  to 1 in. It features a pixelated monitor graphic that resembles the computer icon found in the final release of Windows Vista, albeit with dark grey outlines and features the aurora wallpaper found in subsequent builds of Longhorn.

Briefcase introduction
This build contains a briefcase introduction dialog, which can be opened by running.

Sidebar
This build features the sidebar, which is disabled by default and can be enabled in the "Taskbar and Start Menu Properties" dialog. Among its options, there is the possibility to toggle its transparency as well as side, other than an "Unlock bar" option in order to resize it and a "Taskbar" one, which is an early implementation of a combined taskbar and sidebar: upon clicking it, the taskbar will disappear and a new Start button will appear at the top of the sidebar; currently open applications will not be displayed though. The sidebar includes several tiles already, which are the equivalent of the gadgets that would much later be seen in Windows Sidebar, such as Clock, DesktopManager (a functionality that would have not made it into a final Windows version until Windows 10), MFU, Quick Launch, Search, SlideShow and UserTile. When the sidebar contains tiles and is set to be minimized, a second tray will appear in the taskbar, showing the icons of the added tiles. Clicking each icon will open the flyout of its associated tile, if it has any.

"People" sidebar tile
This build features a normally hidden People sidebar tile. It can be enabled by changing the following values in the registry:

Digital clock sidebar tile
Another hidden sidebar tile, included in this build is a digital clock tile, which also can be enabled by changing the following values in the registry:

Game manager
This build contains an early prototype of a game manager. Game Definition (GDF) files are recognized by Explorer, and a sample file can be downloaded here. Additionally, it's possible to open a "My Games News" window by running.

Desktop Compositing Engine
Contrary to popular belief, this build already contains Desktop Compositing Engine, but it is unstable and only renders window transparency. It is only known to work on real hardware, and it lacks a user interface as well. It can be enabled on the next startup by adding the following registry key and restarting:

Alternatively, DCE may be started or stopped on request by substituting  with   in the reg key above. After restarting the computer, DCE may be started by entering  in a command prompt window and stopped with. After stopping DCE it is helpful to drag a few open windows around to redraw the screen.

Avalon-based Display Properties
This build also includes a new Avalon-based display settings applet, which can be accessed by right clicking the desktop and then selecting "Properties". However, this applet is largely incomplete; only the "Desktop Background" and "Use Classic Display Control Panel" options work (the earlier option is partially broken), while "Scale and Resolution" and "Display Connection Settings" crashes the applet and Theme and Screen Saver applets and "More Information" option of Display Connection Properties only lead to a screen saying these components are under construction.

In the Desktop Background, one can select to choose a solid color background, gradient background, rotate to different images (this functionality was under construction) or even make picture collages. The option to change images on the desktop periodically would eventually be a feature that would come in the final release of Vista. Gradient backgrounds made by the applet will be created as a bitmap file named "Wallpaper1".

Media Center
Much like other Milestone 3 builds, this build contains an early version of the Media Center components, codenamed Freestyle. The components can be added from the Add or Remove Programs in the Control Panel under the name of "Freestyle". Once installed, restart the computer to complete the installation. Media Center is unstable and is very likely to crash instantly on some systems. This also changes the boot screen, altering the "Professional" text to "Freestyle", while the About Program banner changes from "Professional" to "Media Center Edition".

If prompted for the second disk, it should be pointed to the I386 directory of the installation media.

Start Page
This build, along with the other Milestone 3 builds, contains a new Start Page feature, appearing to be a prototype of a different OOBE to replace the one used in Windows XP. By default, it is not accessible, but Stanimir Stoyanov provided the original Start Page Launcher which can be used to open the Start Page. Due to its earliness, it only contains four tiles that are nonfunctional, being E-Mail, Calendar, Quick Launch, and PromotionsTile.

Login screen
The Welcome login screen now has the ability to require the user to press Ctrl to log in to the system. Previously, this was only possible when using the classic login screen.

Miscellaneous

 * The kernel version has been changed to 6.0.
 * The out-of-box experience music has been changed to No Hay Problema by Pink Martini, which is included but not used in the final release of Windows Server 2003.
 * The Windows Product Activation grace period has been reduced to 14 days.
 * DirectX has been updated to version 9.0.
 * The Castle service has been introduced.
 * Internet Explorer has been updated to version 6.05.

Bugs and quirks
DiskPart does not work and will tell the user that

OOBE
The out-of-box experience may take up a much longer time to initialize unlike other builds.

Explorer

 * When logging in, Windows Explorer will be fairly un-responsive for several minutes.
 * Logging off has a chance of crashing Windows Explorer.
 * Deleting the registry key  will disable the details pane in Explorer and enable the Windows XP-style task pane instead.

Sidebar

 * Often, switching to a virtual desktop will fail if the virtual desktop has at least one open program.
 * When combining the taskbar with the sidebar, balloons will still pop at the same place as where the taskbar would be at if not combined with the sidebar.

Applications

 * Task Manager allows the user to terminate critical system processes.
 * Paint and  crashes on exit with a  error.
 * As with later builds of Longhorn, this build is incompatible with a number of applications that require Windows XP or earlier due to the kernel version. Many of these compatibility issues can be resolved by running applications in Windows Compatibility Mode or by editing the CSDVersion key located in the Windows Registry.
 * Some installers that rely on Windows Installer may incorrectly say that this build is x64.
 * Outlook Express has a broken pane close button and the bitmap shown in the About box is not properly displayed.

Media Center
Once installed, it is impossible to uninstall Media Center. The only way to uninstall this is to reinstall Windows.

Upgrading

 * On some software configurations, upgrading from Windows XP can result in setup reporting that a file is missing in . The filename will always start with the letter 'a' followed by a random string of seven alphanumeric characters, but the file extension will always be  . This can be fixed by expanding any valid   file into the   folder.
 * When upgrading from a clean install of Windows XP Service Pack 1 and higher, the system will be upgraded to the Media Center SKU. However, most branding will not be updated, and will still say Professional.
 * It is not possible to upgrade from Windows 98 or Windows Me due to the folders  and   being missing.
 * On some machines, setup will crash the system on registering components. When the system reboots, setup will restart. However, it will fail to find several files (mainly during Installing Start Menu Items) despite the files being in the correct location.
 * Some drivers may cause a BSOD when booting to the desktop. This can be fixed by booting into safe mode, uninstalling the malfunctioning driver and then reinstalling the driver.

Control Panel
In Display Properties, the Luna theme is referred to as Plex.

Internet Explorer
Downloading a file will cause Internet Explorer to crash. Additionally, the download animation is broken. This does not affect downloads from a FTP site when the file is drag-and-dropped to the desktop. Also, downloads still work with other browsers such as Firefox and Opera.