WindowsLonghorn build 4029 (main) is a Milestone 5 build of Windows Longhorn, which was shared online on 14 September 2003.[1] This build is notable for the distinctive Pig Latin build string. This was a test of automatic data entry that would become commonplace in later builds and eventually, Vista. A Home Edition SKU of this build is also known to exist, with several screenshots first appearing on Neowin a week before the upload of its Professional counterpart,[2] with an additional image later surfacing onto Twitter on 18 September 2020;[3] the variant is yet to be shared to the public.
Setup has received major uplifts compared to previous builds of Longhorn, such as build 4020. Upon booting into the Preinstallation Environment, it will refer to itself as "Windows XP Preinstallation Environment", rather than "Windows Setup". The logo, during setup, has also been removed - alongside an additional cancel button at the top right and text at the top left, mentioning about the current page of setup that the user is on. This build also uses a new product key called TCP8W-T8PQJ-WWRRH-QH76C-99FBW, replacing the old CKY24-Q8QRH-X3KMR-C6BCY-T847Y key used in earlier builds. However, only some copies of this build uses the new key.
The hardware portion of setup has been updated slightly, after a long while - showing its text on the bottom, and also now stating that it is detecting hardware. Once completing the hardware portion of setup, setup will restart once again.
This build was among the first to use the Pig Latin string onghornLay rofessionalPay (for Longhorn Professional), onghornLay omeHay ditionEay (for Longhorn Home Edition, unleaked) or onghornLay abletTay PC ditionEay (for Longhorn Tablet PC Edition) in the desktop version string, which caused some to doubt its authenticity; however, this was part of the testing Microsoft had done to propagate the product name and version number throughout the operating system, in order to dramatically simplify the naming process.[5] In previous versions of Windows, changing the product name or version number was a difficult task which required manually editing information in many areas of the user interface.[6]
This build combines dce.dll and themesrv.dll into a single file named desksrv.dll that is used to implement the resources for the new second-generation DCE from build 4020, such as an early iteration of the Milestone 6 glass frames and an image seemingly for the glass frames on login screen. It uses the DesktopServerEntry parameter. However, DCE is still not functional. See later for explanation.
When upgrading from build 4020, the user account that initiated the upgrade may have a password applied to the account. To bypass this problem, sign in with the administrator account to remove the password.
Many system sounds don't work as they are pointed to the Windows directory instead of the Windows/media directory. Even if the registry entry is modified to point to the Media directory, the sounds often don't work for unknown reasons. This bug persists until build 4093.
The desktop watermark caption is not bold in a clean installation when the theme is set to Plex due to the Pig Latin change. This does not affect both Luna and Windows Classic. Upgrading from a previous build will utilize the Pig Latin build tag in bold.
The implementation on desksrv.dll is still incomplete, so it still can't produce glass borders. Instead, it downscales windows and cause display glitches. sbctl.exe has many parameters for controlling DCE, but only the wmgstart and wmgstop parameters works correctly.
Background: Microsoft Chicago is the development codename for Windows 95. This operating system introduced one of the most iconic desktop interface designs, including the introduction of the Start menu (created by Danny Oran), which allows easier access to desktop applications and settings. This UI is still used in current Windows builds.
Background: "Windows NT 5.0" was the original in-development name for Windows 2000. The name was changed to "Windows 2000" in Beta 3 (around version 5.00.1946 to be specific). While early test builds of Windows NT 5 were very similar to Windows NT 4, they gradually began to develop their own visual and sound elements.
Screen: On the Windows 95 desktop background, there is the Windows logo on a nighttime background like the one in the Windows NT Workstation 4.0 startup. The text on the top right says "Windows NT Workstation", and the text on the bottom right says "5.0". In this screen, "Beta 1/2/3 etc." and "Evaluation Copy" are placed on the left side, alongside the protection notice from Windows NT 4.0.
Availability: Extremely rare. Windows NT 5 releases were originally only available to participants of Microsoft's beta testing programs, but copies of certain builds have since leaked to the beta community. Builds known to be available of NT 5 are build 1729 (the Interim Developer's Release), build 1877 (Beta 2), build 1902 (Beta 2), and build 1906 (Beta 2), among other earlier and later builds that may or may not have this specific startup.
Underneath the graphics is a gradient blue bar that continually moves to the right. Still underneath that are the words "Starting up..." To the right of the words is the all-too-familiar "download bar." This entire box is surrounded by a black border.
Shutdown Variant: A dialog box, with a slightly somewhat rearranged positioning of the above elements. The Microsoft logo is absent from the upper right corner, replacing it with a navy blue bar. Underneath the now-still gradient bar, the words "It is now safe to turn off your computer." appear in a gray area.
Startup Sound (Music/Sounds): For the startup The same beeping arpeggio from Windows NT 5.0's The Microsoft Sound, but faster and high-pitched, and backed by a chorus pad. Much more pleasant than the original startup sound, and its shutdown sound. This was originally going to be used for the Beta 1 shutdown sound.
Other sounds (Music/Sounds): As these builds began to further resemble the final version of Windows 2000, the sounds were official changed to the Windows 98 sounds, just shortly after Windows 98 was official released. This saw an end to the 3.1 sounds for subsequent Windows versions in both the NT and 9x line.
Scare Factor: None for the start-up version, as it is very soothing and very tame, compared to its shutdown counterpart. Low to High for the shutdown version, as most would not likely be expecting the sudden whoosh, which is re-used, however if you're used to it, the rating might be lower.
Background: Neptune was to be Microsoft's next-generation operating system targeted at home users. It differed from previous consumer-oriented Windows versions in that it was built on the Windows NT code base. However, Neptune was shelved and home users were treated to Windows ME instead.
Screen: Same as the Windows 2000 startup, but the Windows logo is removed and the dots to the left of it, in rainbow colors, appears to the left of the text, now grey and changed to: "Microsoft Neptune". Below the text says "under construction".
Availability: Near extinction, as it is only available on Neptune build 5.50.5111. Other builds may exist, but only the existence of this one has been proven. 5111 is the only leaked build, and it's NOT easy to find, however you can find it in software preservation sites like WinWorld. Earlier builds might contain the Windows 2000 boot screen, but there's no info (at least yet).
Music/Sounds: Early Betas/Builds until build 2481 used the Windows 2000/ME sounds, while Build 2481 introduced the Windows XP sounds. Build 2485 is the first build to use Windows XP sounds by default. The fake startup is a reverse Windows 98 shutdown sound ending in a ascending vibraphone melody (taken from Windows CE, however it has been slowed down) and ends with the Windows 2000 startup sound from beta 3 reversed. The fake shut down is a descending guitar melody ending with a few twinkling notes.
Logo: On a black background, near the bottom we see a white Windows XP logo. To the right of it is the text "Microsoft" in a weight of Franklin Gothic, following a trademark sign at the top right of the text, and below said text is "Longhorn", in the same weight of Franklin Gothic. Below all of that is the Windows XP progress bar.
Variant: In build 4042, there is a small version of the Windows XP logo; below is the text "Microsoft Windows Code Name" and below aforementioned text is "Longhorn". Also, the progress bar is orange. In build 5048, there is also a screen with the white Windows XP logo at the bottom with the text "Windows Code Name" followed by the text "Longhorn" below that, and the progress bar is white.
Logo: Against a black background, we see a fish on an aqua square. Around the fish is 2 bubbles connected to each other (which look like an 8). There are the circular dots spinning around as the screen loads.
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