Windows Vista build 5048

Build of Windows Vista
OS family
Architecturex86, x64
Timebomb+180 days after original install date
Works in
TCB.png TCBGallery.png

Windows Vista build 5048 is a pre-Beta 1 build of Windows Vista. This build is the official Longhorn Developer Preview, released to attendants of WinHEC 2005 on 24 April 2005.[1]

Being a pre-beta 1 build, it is noticeably closer to Windows XP and Windows Server 2003 than to pre-reset builds. It is also an idx02 build, which suggests that it was recompiled several times, and therefore is behind regular builds compiled at the time. The x64 version of this build is similar to the x86 build, but it has a different EULA and Windows XP x64 Edition brand wallpaper instead of the Windows Server 2003 brand wallpaper which is named as winxp.jpg.

Unlike other post-reset Vista builds, it was compiled in evaluation mode, and it can be installed on the current date. The timebomb in evaluation mode behaves just like pre-reset builds; if the timebomb expires, the user is automatically logged out.

This is the last available Windows build to include the Luna theme, although it is noticeably broken and uses Slate graphics for the right pane of the Start menu. It is also the last known build of Windows to include the game Full Tilt! Pinball.

Setup[edit | edit source]

Although previous builds of post-reset Vista re-used the older i386 installation process, this build re-uses the Windows Preinstallation Environment installation process from later builds of Longhorn, retaining the slate theme as well. However, a few changes have been made. The launching WinPE screen does not show anymore, now leaving you without any option of pressing F6 to load in certain drivers during boot. However, the user still can load drivers by selecting the "Load Driver" option at the page where the user decides where Windows will be installed. The icon even shows a F6 key. The starting setup screen has also been altered, now containing the Windows flag. Anti-aliasing is no longer present on fonts, and the numbers on the progress bar no longer glow. Finally, the hardware portion of setup now includes a dummy progress bar[2] on the bottom, and the Windows flag has been added to the middle of the page. Asides from all of these minor changes, setup is overall mostly similar to what was found in later pre-reset builds of Longhorn. The setup autorun is notable for containing a mention of Beta 1, in this case the second button is labeled View Beta 1 Release notes.

New features and changes[edit | edit source]

  • This build includes Windows System Assessment Tool (shortly WinSAT) and Windows Diagnostic Infrastructure (WDI). However, WinSAT is non functional and links lead to an intranet website instead.
  • Windows Media Player 10 and Internet Explorer 6 SP2 are also now present.
  • Sync Manager (Later known as Sync Center) has been introduced.
  • Many of the icons from later pre-reset builds have returned, some with minor alterations. A few icons are also new to this build. However, the Control Panel and Printers icons are from Windows 95, just like late pre-reset builds.
  • This build uses the legacy login dialog (similar to ones in Windows 2000/Server 2003). The Windows XP welcome screen can be enabled in User Accounts from Control Panel, and is a leftover that would be removed before build 5098.
  • This build uses BOOTMGR as the default bootloader, but still includes NTLDR as an alternative way to boot. This can be seen via a dual boot. As a result, this build also contains the notable red screen of death (RSOD) when a boot error occurs.
  • You can choose a bunch of different themes, including the Windows XP Luna themes, the classic theme, and the three new Aero themes.
  • Paint has received an update which added a zoom slider first seen in pre-reset build 4051).
  • Self-Healing NTFS was reintegrated from pre-reset build 4074.
  • Instant Search was implemented in this build.
  • Control Panel's Category View was revamped and applets were added for installed programs.
  • Microsoft Anna Speech Synthesizer from pre-reset build 4093 was added. However, it is slightly different.
  • This build changes the AUTOCHK screen to blue, and the text black.

Windows Boot Manager[edit | edit source]

This is the first known build to include the Windows Boot Manager (BOOTMGR), replacing NTLDR used since the Windows NT 3.1 October 1991 build. Unlike its predecessor, the Boot Manager stores its data in BCD (Boot Configuration Data) stores rather than plaintext INI files.

Unlike later builds, the error screen is red in this build, leading to it being called a red screen of death. Furthermore, the advanced boot options screen is blue. Text mode is also used at all times, while later versions use a framebuffer console in a VESA compatible mode if possible.

This is also the first build to require ACPI support, as it is required by the new boot loader and trying to start Windows on a non-compliant system results in an error.

Windows Explorer[edit | edit source]

  • My Computer has been renamed to Computer, as with late pre-reset builds.
  • File checkboxes and scalable icons (first seen in pre-reset builds) have been reintroduced.

Start Menu[edit | edit source]

Start Menu received many new updates in this build including the famous search box that will later be seen in Windows Vista and Windows 7. The outline of the start menu is now transparent. "All Programs" menu is now an inline menu and it doesn't open in a separate context menu-like UI.

Customize Start Menu has references to "My Games" and "My Hardware" links.

Aero[edit | edit source]

  • This build marks the debut of the Aero theme (which is loaded by default without DWM).
  • This build includes three new Aero themes.
  • One of the new Aero themes (Theme 2) use a similar design to later builds of Vista (The only difference is that the minimize and maximize buttons are little arrows, where the minimize arrow points down and the maximize arrow points up).
  • The Aero theme is now the default theme overall system, along with its visual effects and wizards.

Desktop Window Manager[edit | edit source]

This build of Vista reintroduces the Desktop Window Manager, after being absent in late pre-reset and Omega-13 builds. It crashes at startup if no driver is installed and software emulation is needed if when no compatible driver is available. LDDM drivers are now included by default, supporting many GPUs of the time, however DWM can run with a regular XPDM driver, by using a registry edit.

There are two different ways of initializing DWM, one is modifying the registry, while the other is initializing a DLL via rundll32.exe. The more simpler rundll32.exe method is simply opening up the command prompt, and typing rundll32 udwm.dll,DwmClientStartup. This, however, randomizes the effects used with DWM. The other method of initializing DWM can be done via opening the Registry Editor, navigating to HKEY_LOCAL_MACHINE\Software\Microsoft, creating a new key called DWM, then creating the following 3 DWORDs inside the key:

Key Values
EnableMachineCheck 1 - enabling machine check, which disallows the possibility of using XPDM drivers

0 - disables machine check

ForceSoftwareD3D 1 - forces software rendering

0 - hardware rendering

Metal 1 - makes the titlebar yield an opaque a metal-like style

0 - transparent titlebars

UseAlternateButtons 1 - square-like buttons

any other value - smaller Vista-like buttons

After making these changes, log out then log back on to initialize DWM.

User Account Control[edit | edit source]

This is the first build after the development reset to include a preliminary version of User Account Control.

Removed features[edit | edit source]

  • MSN Gaming Zone
  • Windows NetMeeting (which would be replaced with Windows Meeting Space later during development)
  • Windows XP Tour
  • Filmstrip view in Windows Explorer

Bugs and quirks[edit | edit source]

  • The setup switches to 16-bit color 800x600 video mode after briefly using 24-bit 640x480 during its startup, resulting in a noticeable dithering effect of the background during setup.
  • There is a limit of 50 files able to be browsed per folder, but it can be bypassed by viewing icons in groups.
  • Enabling auto login for the default user account while having the new login screen enabled can make the login screen throw up an error. This can be safely ignored.
  • The Turn off computer option is missing from the new login screen.
  • Help and Support does not open due to a missing helpctr.exe, but an updated help application, called HelpPane.exe, can be found in the Windows folder.
  • Although this build can partition properly during setup, the partitioning page doesn't refresh properly, requiring you to reboot your system in order to see the new partition.
  • The timer located at the bottom-right corner in setup is not functional, as it always displays 15-25 minutes left... regardless of the progress.
  • The Windows logo has a white background on the hibernation screen.

Upgrading[edit | edit source]

While this build requires build 5019 or higher to upgrade to, preupgradenotice.txt in the sources folder lists various bugs that will be encountered when an upgrade takes place.

preupgradenotice.txt[edit | edit source]

Longhorn ReadMe File for Internal Upgrades
Quality Statement
Build to build CBB upgrades complete OS migration successfully without data loss or a reinstallation of the OS, and a functional migration of the following items:
1.  Applications
·  Office 2003
·  Product Studio
2.  Developers’ Environment
·  Razzle Environment
·  Visual Studio 2005 Beta 1
·  Visual Studio 2003
3.  System Settings
·  Domain Membership, Security accounts with password, Computer Name
Measurement is based on a minimum of 100 systems installs (50 Lab and 50 Self Host system upgrade completions) and meeting the Longhorn Quality Gates.  For more detail on the release criteria, see http://winweb/warteam/_content.asp?id=46&r=905

** Restricted upgrade scenarios **

Upgrade is *NOT* supported in the following scenarios for this RI:

1.  OS being upgraded is a build lower than 5019 *
2.  OS being upgraded is an INF build (only CBB -> CBB upgrades are supported) *
3.  OS being upgraded is newer than the one being installed
4.  OS being upgraded is 64-bit, setup being run is x86
5.  OS being upgraded is a server build
6.  OS being upgraded is LH Home, setup being run is LH Pro
7.  OS being upgraded has multiple OS’s installed on the target partition

* Upgrade support is planned for these scenarios in future milestones.

** Known Migration Issues **

Some system settings don’t migrate

For this RI, system settings are not expected to migrate correctly yet – this is by design.  Known issues include the failure to migrate:
·  Mapped network drives
·  IE pop-up blocker – allowed sites
·  IE toolbars
·  Proxy server info
·  Printers & faxes
·  Folder attributes (sharing, compression, redirection, etc.)
·  Some desktop shortcuts

System setting migration will be supported by Beta 1.

**  Drivers do not migrate **

Some drivers (e.g. out-of-box video drivers) do not migrate.  You’ll need to reinstall drivers for now.  Going forward, more robust driver migration will be supported.  (Bug 1061700)

**  Upgrading a laptop results in loss of network connectivity. **

Temporary workaround is to use a wired connection and rejoin the domain.  (Bug 1062094)

**  Product Activation (WPA) timer is not reset on migration **

If Windows is not activated prior to migration, the 15-day activation timer continues to count down post-migration from the date of the last clean install.  The simple workaround is to activate Windows.  (Bug 1062178)

**  Fonts installed by applications are not installed to the system.  **

Temporary workaround is to retrieve the font from the Quarantine folder.  (Bug 1060342)

**  Outlook shortcut icon is not displayed in Start menu after migration; icon used doesn’t launch Outlook. **

Shell settings are slated to be migrated properly in the last RI prior to Beta 1.  (Bug 1059072) 

**  The home page of the .Net framework documentation becomes **

This is an IE setting, also slated for migration in the last RI prior to Beta 1.  Workaround is to repair the .Net framework install.  (Bug 1056495)

**  Visual Studio .NET 2003 Command Prompt -- one of the .NET tools is not migrated on the target machine. **

Command prompt still works fine – just the shortcut is missing.  Workaround = Start -> Run -> “cmd”.  (Bug 10565056)

File differences[edit | edit source]

The following files have been introduced, renamed or removed from build 5001:

Added files
Name Description Version
wmstream.dll Windows Media Streamer DLL
wmvadvd.dll Windows Media Video 9 Decoder
wmvadve.dll Windows Media Video 9 Decoder
WMVDECOD.DLL Windows Media Video Decoder
WMVENCOD.DLL Windows Media Video 9 Encoder
WMVSDECD.DLL Windows Media Screen Decoder
WMVSENCD.DLL Windows Media Screen Encoder
WMVXENCD.DLL Windows Media Video Encoder
wpdconns.dll WPD Connection Objects 5.2.3790.3658
wpdmtp.dll 5.2.3790.3658
wpdmtpdr.dll 5.2.3790.3658
wpdmtpus.dll Usbscan transport layer for MTP driver 5.2.3790.3658
wpdtrace.dll WPD Tracing 5.2.3790.3658
wscmisetup.dll Installers for Winsock Transport and Name Space Providers 6.0.5048.0
WSDApi.dll Web Services for Devices API DLL 6.0.5048.0
wshBth.dll Windows Sockets Helper DLL
wshirda.dll Windows Sockets Helper DLL 6.0.5048.0
WUDFCoinstaller.dll Windows Driver Foundation - User-mode Platform Device Co-Installer 6.0.5048.0
WUDFHost.exe Windows Driver Foundation - User-mode Driver Framework Host Process 6.0.5048.0
WUDFPlatform.dll Windows Driver Foundation - User-mode Platform Library 6.0.5048.0
WUDFSvc.dll Windows Driver Foundation - User-mode Driver Framework Services 6.0.5048.0
wups2.dll Windows Update client proxy stub 2
xmlrw.dll Microsoft XML Slim Library 2.00.3526.0
Renamed files
Old filename New filename Old description New description Version
Moon flower.jpg Moon.jpg
Purple flower.jpg PurpleF.jpg
Red moon desert.jpg RedMoon.jpg
Stonehenge.jpg StoneH.jpg
Vortec space.jpg Vortec.jpg
Windows XP.jpg winxp.jpg
Removed files
Name Description Version
wmvdmod.dll Windows Media Video Decoder
wmvdmoe2.dll Windows Media Video Encoder
wowfax.dll Windows 3.1 Compatible Fax Driver DLL
wshatm.dll Windows Sockets Helper DLL 6.0.5001.0
wshisn.dll NWLINK2 Socket Helper DLL 6.0.5001.0

Gallery[edit | edit source]

References[edit | edit source]

  2. All it does is just continuously increase in size until it reaches the end, then it goes back to the start.