Windows Longhorn was the pre-release codename for Windows Vista and was the successor to Windows XP and Windows Server 2003 (built from NT 5.2 codebase). Development on the OS started in May 2001 and went through two unique development cycles separated by a development reset in 2004. The reset occurred as Microsoft's development staff had lost focus on the project as a whole and what was required to be done in order to bring it to market. Features were being written into the OS at an alarming rate with a significant lack of QA or vision of true requirement. This combined with Microsoft's trustworthy computing initiatives caused the reset.

Several features of Longhorn planned that were actually shipped include the glass replicating Aero theme (which followed the Slate and Jade themes from earlier builds), along with the Windows Sidebar - although this was shipped as a standalone utility where as most builds (at least in pre-reset) shipped this as part of explorer.exe. Numerous improvements to the Windows Explorer, along with an updated Internet Explorer 7, Windows Media Player 11, instant search, new 3-d games and other items made it into the final version of Windows Vista.

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Windows Longhorn existed as a continuation of the Windows 2003 codebase although after build 4094 development was reset; restarted from scratch as the original Longhorn builds were growing in complication (described as 'a mess') and Microsoft introduced a new focus on security. These are the pre-reset builds.


Stats/Requirements

Category: Operating System
Platform: Windows
Release: 2001
End of Life: Unknown
RAM: 512 MB
Disk Space: 4.29 GB
Required CPU: 1.0Ghz P-III or compatable
Type: Graphical

Downloads

Name Version Size Language Architecture Contents
Windows Longhorn (6.0.3683.0) (beta)  BETA 6.0.3683 538.72 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.3718.0) (beta)  BETA 6.0.3718 646.28 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4008.0) (beta)  BETA 6.0.4008 562.1 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4011.0) (beta)  BETA 6.0.4011 553.26 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4015.0) (beta)  BETA 6.0.4015 586.14 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4029.0) (beta)  BETA 6.0.4029 592.2 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4033.0) (beta)  BETA 6.0.4033 613.6 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4039.0) (beta)  BETA 6.0.4039 632.41 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4042.0) (beta)  BETA 6.0.4042 681.88 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4051.0) (beta chk)  BETA 6.0.4051 714.82 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4051.0) (beta)  BETA 6.0.4051 677.53 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4051.0) (x64 beta chk)  BETA 6.0.4051 527.06 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4051.0) (x64 beta)  BETA 6.0.4051 477.87 MB English amd64 DVD-ROM ISO
Windows Longhorn (6.0.4053.0) (beta)  BETA 6.0.4053 693.28 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4066.0) (beta)  BETA 6.0.4066 596.2 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4074.0) (beta)  BETA 6.0.4074 749.32 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4074.0) (x64 beta)  BETA 6.0.4074 643.19 MB English amd64 DVD-ROM ISO
Windows Longhorn (6.0.4083.0) (x64 beta)  BETA 6.0.4083 500.91 MB English amd64 DVD-ROM ISO
Windows Longhorn (6.0.4084.0) (WinPE beta)  BETA 6.0.4084 50.57 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4088.0) (WinPE beta)  BETA 6.0.4088 49.74 MB English x86-32 DVD-ROM ISO
Windows Longhorn (6.0.4093.0) (beta)  BETA 6.0.4093 952.5 MB English x86-32 DVD-ROM ISO