Windows NT 3.51

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Windows NT 3.51
Version of the Windows NT operating system
Microsoft Windows NT 3.1 logo with wordmark.svg
Windows NT 3.51.png
Developer Microsoft
Source model Closed source
General
availability
May 30, 1995;28 years ago (1995-05-30) [1]
Latest release 3.51 (Build 1057: Service Pack 5) / September 19, 1996;27 years ago (1996-09-19) [1]
Marketing targetBusiness and Server
Platforms IA-32, Alpha, MIPS, PowerPC
Kernel type Hybrid
Userland Windows API, NTVDM, OS/2 1.x, POSIX.1
License Commercial proprietary software
Preceded by Windows NT 3.5 (1994)
Succeeded by Windows NT 4.0 (1996)
Support status
ServerMainstream support ended on September 30, 2000 [2]
Extended support ended on September 30, 2002 [2]
WorkstationMainstream support ended on December 31, 2000 [2]
Extended support ended on December 31, 2001 [2]

Windows NT 3.51 is a major release of the Windows NT operating system developed by Microsoft and oriented towards businesses. It is the third version of Windows NT and was released on May 30, 1995, eight months following the release of Windows NT 3.5. The most significant enhancement offered in this release was that it provides client/server support for inter-operating with Windows 95, which was released almost three months after NT 3.51. Windows NT 4.0 became its successor a year later. Mainstream support for Windows NT 3.51 Workstation ended on December 31, 2000, [2] and extended support ended on December 31, 2001, [2] while Windows NT 3.51 Server mainstream support ended on September 30, 2000, [2] followed by extended support on September 30, 2002. [2] Both editions were succeeded by Windows NT 4.0 Workstation and Windows NT 4.0 Server, respectively.

Contents

Overview

The release of Windows NT 3.51 was dubbed "the PowerPC release" at Microsoft. The original intention was to release a PowerPC edition of NT 3.5, but according to Microsoft's David Thompson, "we basically sat around for 9 months fixing bugs while we waited for IBM to finish the Power PC hardware". [3] Editions of NT 3.51 were also released for the x86, MIPS, and Alpha architectures.

New features introduced in Windows NT 3.51 include PCMCIA support, NTFS file compression, [4] replaceable WinLogon (GINA), 3D support in OpenGL, persistent IP routes when using TCP/IP, automatic display of textual descriptions when the mouse pointer was placed on toolbar buttons ("tooltips") and support for Windows 95 common controls. [5]

In view of the significant difference in the kernel base, Windows NT 3.51 is readily able to run a large number of Win32 applications designed for Windows 95. More recent 32-bit applications will not work, as the developers have prevented their application from working with any Windows version earlier than Windows 98, and also because some applications do not work properly with the older Windows NT 3.51 interface.

Despite this, Microsoft in their application releases muddied the issue, releasing 32-bit versions of Microsoft Office right up to Office 97 (the last version of Microsoft Office supported on NT 3.51), but relying upon 16-bit versions of Internet Explorer technology from versions 3.0 to 5.0. Web browsers based on and including Firefox were operable up to version 2.0.0.22, released in April 2009; they required a few manual file updates to work without compromising browsing security. [6] [7] [8]

Windows NT 3.51 is the last of the series to be compatible with the Intel 80386 processor.

NewShell

On May 26, 1995, Microsoft released a test version of a shell refresh, named the Shell Technology Preview, and often referred to informally as "NewShell". This was the first incarnation of the modern Windows GUI with the Taskbar and Start menu. It was designed to replace the Windows 3.x Program Manager/File Manager based shell with Windows Explorer-based graphical user interface. The release provided capabilities quite similar to that of the Windows "Chicago" (codename for Windows 95) shell during its late beta phases; however, it was intended to be nothing more than a test release. [9] There was a second public release of the Shell Technology Preview, called Shell Technology Preview Update made available to MSDN and CompuServe users on August 8, 1995. Both releases held Windows Explorer builds of 3.51.1053.1. The preview program provided early feedback for the Shell Update Release, the next major Windows NT version with the new interface built-in, which was released in July 1996 as Windows NT 4.0.

Updates

Five Service Packs were released for NT 3.51, introducing both bug fixes and new features. Service Pack 5, for example, fixed issues related to the Year 2000 problem.

Hardware requirements

Windows NT 3.51 hardware requirements [10]
CategoryMinimum requirement
Processor Intel 386 or 486 at 25 MHz
Memory Workstation edition: 12 MB
Server edition: 16 MB
Video card VGA
Hard disk drive standard IDE, EIDE, SCSI or ESDI
Free hard disk drive space90 MB
Installation media CD-ROM drive, 1.44 MB or 1.2 MB floppy disk drive or active network connection

Supported EIDE addressing schemes include logical block addressing (LBA), ONTrack Disk Manager, EZDrive, and extended cylinder-head-sector (ECHS).

Related Research Articles

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<span class="mw-page-title-main">Windows 95</span> Microsoft computer operating system released in 1995

Windows 95 is a consumer-oriented operating system developed by Microsoft as part of its Windows 9x family of operating systems. The first operating system in the 9x family, it is the successor to Windows 3.1, and was released to manufacturing on July 14, 1995, and generally to retail on August 24, 1995, almost three months after the release of Windows NT 3.51. Windows 95 is the first version of Microsoft Windows to include the Modern Windows Feel Windows 95 merged Microsoft's formerly separate MS-DOS and Microsoft Windows products, and featured significant improvements over its predecessor, most notably in the graphical user interface (GUI) and in its simplified "plug-and-play" features. There were also major changes made to the core components of the operating system, such as moving from a mainly cooperatively multitasked 16-bit architecture to a 32-bit preemptive multitasking architecture, at least when running only 32-bit protected mode applications.

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<span class="mw-page-title-main">Windows File Manager</span> File manager bundled with Microsoft Windows in the 1990s

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<span class="mw-page-title-main">Microsoft Drive Optimizer</span> Windows utility which defragments a hard drive

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This is the version history of Internet Explorer.

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References

  1. 1 2 Adams, Paul (August 4, 2009). "Windows NT History". Microsoft Build.
  2. 1 2 3 4 5 6 7 8 "Microsoft Support Lifecycle for Windows NT 3.51". Microsoft. Retrieved January 15, 2019.
  3. Thurrott, Paul (January 24, 2003). "Windows Server 2003: The Road To Gold - Part One: The Early Years". SuperSite for Windows. Archived from the original on June 4, 2010. Retrieved September 4, 2009.
  4. Daily, Sean (February 20, 2014). "Optimizing NTFS". Windows NT Magazine. Retrieved June 25, 2017 via TechNet.
  5. "Windows NT 3.51 Product Overview". Support. Microsoft. October 31, 2006. Archived from the original on December 25, 2007.
  6. "System Requirements". Installation Instructions for SeaMonkey 1.1.19. March 16, 2010. Retrieved November 30, 2015.
  7. Lineback, Nathan (2010). "Misc Windows". toastytech.com. p. 4. Retrieved November 30, 2015.
  8. Lineback, Nathan. "Web Browsing fixes for NT 3.51, 95, and NT 4". toastytech.com. Retrieved November 30, 2015.
  9. Ruley, John D. (September 1995). "NT Gets the Look But Not the Logo". How-To Columns. WinMag. Archived from the original on March 14, 2006. Retrieved September 4, 2009. Internet Archive
  10. "Windows NT 3.5x Setup Troubleshooting Guide". Microsoft Support. Microsoft. November 1, 2006. Archived from the original on February 23, 2007. Retrieved September 4, 2009.