Windows Longhorn build 4093

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6.0.4093.main.040819-1215
Build of Windows Longhorn
6.0.4093.main.040819-1215
OS family
Architecturex86
Compiled2004-08-19
Timebomb2005-02-15 (+180 days)
Works in
About
LH4093 Winver.png
SKUs
Professional
Key
TCP8W-T8PQJ-WWRRH-QH76C-99FBW
TCB.png TCBGallery.png

Windows Longhorn build 4093 is the last 'main' compile of the original "Longhorn" project (based on the Server 2003 RC1 code-base) before development was reset with build 3790.1232. This build was leaked on 28 August 2006, shortly after the closure of the original OSBetaArchive, and was labeled a farewell release. It is highly unstable; which was typical of most later "Longhorn" builds.

It can login on the current date without activation.

It was the last pre-reset "Longhorn" build to be leaked, and one of the last to be compiled. This build's installation media cannot be booted up normally; this can be done using build 4033's Preinstallation Environment. However, there are people on the internet who have fixed this issue with a custom installer that lets you boot straight from the ISO.

Many applications and features are unstable works-in-progress, and might not function as intended. The development reset began a mere four hours and fifteen minutes after the compilation of this build, at 16:29 (although many teams had already been working with the new codebase since at least 3 August 2004). Development moved to a new code base, which eventually became Windows Vista.

Setup[edit | edit source]

Although setup is mostly similar to previous builds of Windows Longhorn, a few places have been changed slightly, mostly just text being changed.

Features[edit | edit source]

  • A new sound tray icon has been added to the taskbar, however, it just opens up the Sound and Devices Properties window.
  • The Games library has been largely updated. Although there are no longer any shortcuts to the games (but the games themselves are still present on the system) due to componentization, there are certain features located on the toolbar, such as buddy matchmaking.
  • The shutdown/restart/stand by choices have been uplifted, now including an entirely revamped shutdown screen, prompting you if you want to carry out said action.

UAC[edit | edit source]

User Account Control has received a few uplifts in this build, now granting a tick dialogue in the properties of an application on whether non-admins can open said app or not. The dialogue itself upon opening an unknown application has also been modified.

MXPlayer[edit | edit source]

It has a new version of Media Player called MXPlayer. It can be accessed by running MXPlayer.exe in the installation directory, but it is incomplete and a lot of the options don't work or result in assertion errors.

Avalon Applications[edit | edit source]

It includes an Avalon-based Windows Movie Maker application. However, this version is highly unstable, and the debug prompts and assertion error messages that plague it make it nearly unusable. The Movie Maker can be found in C:\Program Files\Movie Maker 3\MovieMaker.exe.

It also marks the return of the Avalon-based Display Properties dialog first seen in build 3683. However, most of the links simply redirect you back to the XP-style dialog. An Avalon-based Power dialog can be found in this build as well, though it is unstable. Likewise, there is also an Avalon Wireless Presentation application in this build. The applets are LHDesk.exe, PowerCpl.exe, and WPWizard.exe in SYSTEM32, respectively.

It also includes a prototype Color Management Avalon-based control panel. However during componentization of the build, a mistake was made in the manifest for the main executable of the control panel, leading in the executable not being present in the component store, and its main DLL component duplicated. The component in question is microsoft.windows.controlpanel.colormanagement. However it is believed that the missing executable was just a stub, starting the main application code in the duplicated system.windows.explorer.controlpanel.colormanagement.dll file. It is thus easy to recreate the stub executable using an IDE like SharpDevelop. The control panel applet is extremely unfinished, as shown by the other pages accessible on the right either crashing or doing nothing.

Prototype Windows Product Activation[edit | edit source]

Inside C:\Windows\Microsoft.NET\Windows\v6.0.4030\ is a file named LicenseUI.exe. It contains dialogs for a prototype version of Windows Product Activation, however most of the dialogs don't load and those that remain are highly unstable and incomplete. Some of the dialogs can be run via C:\Windows\Microsoft.NET\Windows\v6.0.4030\LicenseUI.exe -type=w -dlg=?, where ? is a number from 1 to 10, but only 2, 3 and 6 load correctly. However, the 6th dialogue mentions about both Home and Premium SKUs of Windows Longhorn, which indicated that there was going to be said SKUs. These SKUs would later become Windows Vista Home Basic and Home Premium. Asides from the SKUs, the entire list of LicenseUI pages can be found here.

Fixes[edit | edit source]

Windows Classic theme[edit | edit source]

The Windows Classic theme has been fixed in this build, unlike the builds in the 408x range. Before this build and after 4074, the theme was not working due to a bug, but the Windows Classic visual style was still working.

Explorer[edit | edit source]

Hardware and Devices folder is now functional and can open again is this build, unlike the builds in 408x range.

Windows Product Activation[edit | edit source]

Windows Product Activation is present again in this build, unlike the builds in 408x range.

Bugs and quirks[edit | edit source]

Installation[edit | edit source]

  • As typical for componentized builds, it tends to take a long time to install and can be unstable.
  • At one point of setup, the hardware portion of setup has many issues with MUIs, and it will also fail to copy certain files. Whenever setup prompts you to locate certain files, simply skip them. However, this depends on the copy and hardware being used.

No mouse driver in WinPE[edit | edit source]

On some computers and hypervisors, this build's WinPE doesn't support the mouse, so you must use the keyboard to navigate the WinPE. This seems to be related to using a PS/2 mouse, as USB mice seems to work fine for the setup.

Timebomb[edit | edit source]

It is one of the notable Longhorn builds that has a broken timebomb and can be installed on the current date.

Outlook Express[edit | edit source]

Outlook Express does not start due to registry errors and certain dependencies on WinFS.

Explorer[edit | edit source]

  • CD and DVD drives behave like local disks.
  • Help and Support crashes Explorer.
  • Explorer can randomly crash for no reason under normal use, such as adding Sidebar tiles, but this depends on the hardware being used.
  • Sometimes, icons may not show correctly on the desktop and Start menu unless you log off and log back on.

Luna[edit | edit source]

The navigation buttons from Explorer, Internet Explorer and Help and Support are missing in the Windows XP Luna visual style.

Control Panel[edit | edit source]

  • Phone and Modem Options Control Panel applet name is empty.
  • Computer Management displays script errors due to missing registry entries.

Drivers[edit | edit source]

  • This build does not install the default monitor driver by default and may need to be installed manually.
  • The HAL driver will show up as an unknown device, though Windows functions normally.
  • Many driver categories are missing their icons.
  • Sound drivers are unstable in VMware Workstation and can stop working for no specific reason. Hardware acceleration for sound is also unstable.

Safe mode[edit | edit source]

The Safe mode is completely broken and results in a blue screen of death.

Gallery[edit | edit source]

External links[edit | edit source]