Windows 95

Windows 95
Part of the Microsoft Windows family
Screenshot of Windows 95
Developer
Microsoft
Releases
Release date	August 24, 1995; 16 years ago (1995-August-24)[info]
Current version	4.0 (Build 950 C: OEM Service Release 2.5) (November 26, 1997; 13 years ago (1997-11-26))[info]
Source model	Closed source
License	Proprietary commercial software
Kernel type	Monolithic
Platform support	IA-32
Preceded by	Windows 3.1x
Succeeded by	Windows 98
Support status
Unsupported as of December 31, 2001[1]

Windows 95 is a consumer-oriented graphical user interface-based operating system. It was released on August 24, 1995 by Microsoft,^[2] and was a significant progression from the company's previous Windows products. During development it was referred to as Windows 4.0 or by the internal codename Chicago.

Windows 95 integrated Microsoft's formerly separate MS-DOS and Windows products. It featured significant improvements over its predecessor, Windows 3.1, most notably in the graphical user interface (GUI) and in its relatively simplified "plug-n-play" features. There were also major changes made at lower levels of the operating system, such as moving from a mainly 16-bit architecture to a pre-emptively multitasked 32-bit architecture.

In the marketplace, Windows 95 was a major success, and within a year or two of its release had become the most successful operating system ever produced. It also had the effect of driving other major players (including OS/2) out of business, something which would later be used in court against Microsoft. Some three years after its introduction, Windows 95 was succeeded by Windows 98.

Development

The initial design and planning of Windows 95 can be traced back to around March 1992,^[3][4][5] just after the release of Windows 3.1. At this time Windows for Workgroups 3.1 and Windows NT 3.1 were still in development and Microsoft's plan for the future was focused on Cairo. Cairo would be Microsoft's next-generation operating system based on Windows NT and featuring a new user interface and an object-based file system, but it was not planned to be shipped before 1994 (Cairo would eventually partially ship in July 1996 in the form of Windows NT 4.0, but without the object-based file system, which would later evolve into WinFS).

Simultaneously with Windows 3.1's release, IBM started shipping OS/2 2.0. Microsoft realized they were in need of an updated version of Windows that could support 32-bit applications and preemptive multitasking, but could still run on low-end hardware (Windows NT did not). So the development of Windows "Chicago" was started and, as it was planned for a late 1993 release, became known as Windows 93. Initially the decision was made not to include a new user interface, as this was planned for Cairo, and only focus on making installation, configuration, and networking easier. Windows 93 would ship together with MS-DOS 7.0 offering a more integrated experience to the user and making it pointless for other companies to create DOS clones. MS-DOS 7.0 was in development at that time under the code name "Jaguar" and could optionally run on top of a Windows 3.1-based 32-bit protected mode kernel called "Cougar" in order to better compete with DR-DOS.

The Chicago project was led by Brad Silverberg, who was at that time, senior vice president of the personal systems division at Microsoft. Microsoft's product plan looked as follows:

Codename	Planned release date	Description	Released as
"Janus"[6]	March 1992		Windows 3.1
"Astro"[6]	September 1992	Upgrade to MS-DOS 5.0, adding third party tools to surpass DR-DOS 6.0 in features.	MS-DOS 6.0
"Winball"[6]			Windows for Workgroups 3.1
"Jaguar"[6]	June 1993	Next major release of real-mode MS-DOS, better integrating with Windows	(MS-DOS 7.0)
"Cougar"[6]	June 1993	A 32-bit protected-mode MS-DOS kernel based on Windows' 386 enhanced-mode kernel	(Windows 95 VMM)
"Panther"[6]	June 1993	The 32-bit Windows subsystem that could run on top of "Cougar" implementing a subset of Windows NT's Win32 API, but a superset of the Win32s API.	Windows 95
"Rover"[6]	June 1993	Windows for Mobile Computing, based on "Panther"
NT		A new version of Windows built from the ground up as an operating system for servers and workstations.	Windows NT 3.1
"Cairo"			Windows NT 4.0

The first version of Chicago's feature specification was finished on September 30, 1992. Cougar was to become Chicago's kernel.

Beta

Prior to the official release, the American public was given a chance to preview Windows 95 in the Windows 95 Preview Program. For US$19.95, users were sent a set of 3.5-inch floppy diskettes that would install Windows 95 either as an upgrade to Windows 3.1x or as a fresh install on a clean computer. Users who bought into the program were also given a free preview of The Microsoft Network (MSN), the online service that Microsoft launched with Windows 95. The preview versions expired in November 1995, after which the user would have to purchase their own copy of the final version of Windows 95. Some releases were made that haven't been leaked, such as Chicago 30.

Several Windows 95 betas were released before the final launch:

Build 58s	Build 58s introduced a Start menu prototype. It divided the functions of the Windows 95 Start menu up into three buttons. Future Chicago builds combined these three into the Start button still recognized today. Build 58s included a new File Manager, Chicago Explorer, which remained relatively unchanged in the initial version of Windows 95 and in Windows NT 4.0. Build 58s still included Program Manager as found in Windows 3.1, although this application was supplemented by the new desktop and taskbar/Start menu designs. This build also introduced shortcuts (Chicago referred to them as Links) and native right click functionality, which Windows 3.1 lacked. It also introduced long file name support.
Build 73g	Build 73g is the next leaked build of Windows Chicago with a date stamp of November 1993. It is mostly the same as Build 58, with a few UI tweaks and a network logon box at startup.
Build 81	Build 81 follows build 73g. The date stamp says it is from January 1994. The three start buttons are combined into one. However the 8 character folder limit makes the Start Menu item "Accessories" read "access~1". Programs running are only displayed on the taskbar. The briefcase UI was improved. The My Computer item is displayed when opened as :drives and Network as :network
Build 122	Build 122 was the first version of Chicago to call itself a Beta edition. Again, there is not much info on this version, but there is a date stamp of June 9, 1994.
Build 189	Build 189 is the first version to call itself Windows 95. The date stamp is marked September 21, 1994. The UI has been completely re-done to where it looks and feels like the final version of Windows 95, though there still are numerous things left over from Chicago. The start menu also slightly differs from newer builds of Windows 95, as there is actually color along the side.
Build 224	Build 224 is Windows 95 beta 2. Only a date stamp of November 8, 1994 can be found as information on this build.
Build 347	Build 347 is the Windows 95 "Final Beta Release". The build number refers to a German release, but seems to install in English. This version has a date stamp of March 17, 1995.
Build 468	Build 468 is the May Test Release version of Windows 95, with a date stamp of May 11, 1995. This version is so close to the final Windows 95, it can be mistaken for it.
Build 480	Build 480 is the May Test Release. It was released in two languages: English and German.
Build 490 (RC1)	Build is dated June 8, 1995. The build number seems to indicate that this is Release Candidate 1.

Release

Microsoft Windows 95 operating system cover shot

Windows 95 was released with great fanfare, including a commercial featuring the Rolling Stones' 1981 single "Start Me Up" (a reference to the Start button).^[7] It was widely reported that Microsoft paid the Rolling Stones between US$8 and US$14 million for the use of the song in the 95 advertising campaign. According to sources at Microsoft, however, this was just a rumor spread by the Stones to increase their market value, and Microsoft actually paid a fraction of that amount.^[8] A 30-minute promotional video, labeled a "cyber sitcom", featuring Jennifer Aniston and Matthew Perry, was also released to showcase the features of Windows 95. Microsoft's US$300 million advertising campaign featured stories of people waiting in line outside stores to get a copy.^{[citation needed]}

In the UK, the largest computer chain PC World received a large number of oversized Windows 95 boxes, posters and point of sale material, and many branches opened at midnight to sell the first copies of the product, although these customers were far fewer in number than publicity had suggested.^{[citation needed]} In London Microsoft gave free newspapers to people.^[9]

In the United States, the Empire State Building in New York City was lit to match the colors of the Windows logo.^[2] In Canada, a 328 ft (100 m) banner was hung from the top of the CN Tower in Toronto. Copies of The Times were available for free in the United Kingdom where Microsoft paid for 1.5 million issues (twice the daily circulation at the time).

The release included a number of "Fun Stuff" items on the CD, including music videos of Edie Brickell's "Good Times, Bad Times"^[10] and Weezer's "Buddy Holly", most notably resulting in a sudden skyrocket in the popularity of the video and song "Buddy Holly" that won Weezer a place in MTV Music Video Awards history.^[11]

Architecture

Architectural diagram

Windows 95 was designed to be maximally compatible with existing MS-DOS and 16-bit Windows applications and device drivers, while under this constraint offering a more stable and better performing system.^[12][13] Architecturally, Windows 95 can be considered an evolution of Windows for Workgroups' 386 enhanced mode. The lowest level of the operating system is formed by a large number of virtual device drivers (VxDs) running in 32-bit protected mode and one or more virtual DOS machines running in virtual 8086 mode. The virtual device drivers can be responsible for handling physical devices (such as video and network cards), emulating virtual devices used by the virtual machines, or providing various system services. The three most important virtual device drivers are:

Virtual Machine Manager

The Virtual Machine Manager (VMM32.VXD) can be considered the kernel of Windows 95 and is responsible for tasks such as memory management, event and interrupt handling, loading and initialization of virtual device drivers, the creation of new virtual machines, and scheduling of threads.

Configuration Manager

The Configuration Manager (CONFIGMG) is responsible for implementing Plug and Play functionality. It detects devices in the system using several bus enumerators, monitors the system for changes to the hardware configuration. It is responsible for assigning various resources (I/O ports, IRQs, DMA channels, and memory) to the devices in a conflict free fashion.

Installable File System Manager (Input/Output Subsystem)

The Installable File System Manager coordinates the access to various file systems. Windows 95 ships with support for FAT16, and in later releases FAT32, file systems (VFAT), ISO 9660 (CDFS), and several network redirectors. A dynamically sized disk buffer is provided by VCACHE. In the Block I/O Subsystem, requests are scheduled by the Input/Output Supervisor. Access to the disk is performed by a port driver, or in the case of a SCSI device, by a miniport driver working atop the SCSI layer.

Like Windows for Workgroups running with 32-bit file (based on IFSHLP.SYS) and disk access enabled, I/O operations can be handled entirely in 32-bit protected mode, bypassing MS-DOS and the BIOS, giving a significant performance improvement. In case there is no native Windows driver for a certain storage device, or if a device is forced to run in compatibility mode, the Real Mode Mapper port driver can access it through MS-DOS.

The Win32 API is implemented by three modules, each consisting of a 16-bit and a 32-bit component:

Kernel

Kernel (KRNL386.EXE, KERNEL32.DLL, and VWIN32.VXD) provides high level access to functions such as memory and process management, and access to the file system.

User

User (USER.EXE and USER32.DLL) is responsible for managing and drawing the various user interface components, such as windows, menus, and buttons.

GDI

The Graphics Device Interface (GDI.EXE and GDI32.DLL) is responsible for drawing graphics in a device-independent way.

Dependence on MS-DOS

To end-users, MS-DOS appeared as an underlying component of Windows 95. For example, it was possible to prevent loading the graphical user interface and boot the system into a real-mode MS-DOS environment. This sparked debate amongst users and professionals over the question of to what extent Windows 95 was an operating system or merely a graphical shell running on top of MS-DOS. From an architectural stance, both viewpoints lack nuance.

When the graphical user interface was started, the virtual machine manager took over the filesystem-related and disk-related functionality from MS-DOS, which itself was demoted to a compatibility layer for 16-bit device drivers.^[14] This contrasted with earlier versions of Windows which relied on MS-DOS to perform file and disk access. (Windows for Workgroups 3.11 could also largely bypass MS-DOS when 32-bit file access and 32-bit disk access was enabled.) Keeping MS-DOS in memory allowed Windows 95 to use DOS device drivers if suitable Windows drivers were unavailable. MS-DOS also still handled most other functions (for example, allocating memory and parsing file names), issued by legacy Win16 and DOS applications, as Microsoft saw little benefit in replacing these helper functions with newly-written 32-bit code.^[14]

A negative consequence of keeping MS-DOS around was that Windows had to do some work to keep DOS's internal data structures synchronized with those of Windows itself. When starting an application, even a native 32-bit Windows application, MS-DOS would momentarily execute to create a data structure (the program segment prefix) and it was even theoretically possible for MS-DOS to run out of conventional memory while doing so, preventing the application from launching.^{[15][page needed]} Windows 3.x in fact allocated FIXED segments in conventional memory first, which can conflict. And since the segments were allocated as FIXED, Windows could not move them, which would prevent any more applications from launching. This was fixed in Windows 95.^{[citation needed]}

User interface

Windows 95 first-run dialog, explaining use of the Start button.

Some basic elements of the interface introduced in Windows 95 — such as the desktop metaphor with the taskbar at the bottom, Start button and the Windows Explorer file manager — remain fundamentally unchanged in later versions of Windows, such as Windows 7 and Windows Server 2008 R2, nearly 15 years later. The word "Start" was dropped from the button in Windows Vista in 2006, with the company preferring to label the button with the Windows logo ("Start" is still present as a tooltip and in the classic GUI mode). The Start menu introduced in Windows 95 was included at least up to and including Windows 7.

When released for Windows 95, Internet Explorer 4.0 came with an optional shell update known as Windows Desktop Update that changed the user interface significantly. That update gave Windows 95 (and Windows NT 4.0) features that would become the graphical user interface of Windows 98.

Technical improvements

Windows 95 included support for 255-character mixed-case long filenames^[16] and preemptively multitasked pseudo-protected-mode 32-bit applications. Whereas earlier versions of Windows are optional "DOS extending shells" requiring MS-DOS or an MS-DOS compatible operating system (usually sold separately), Windows 95 incorporated MS-DOS into a consolidated operating system, which was a significant marketing change. The release of Windows 95 also marked wider acceptance of Plug and Play standards on the IBM PC platform.

Long file names

32-bit File Access is necessary for the long file names feature introduced with Windows 95 through the use of the VFAT file system. It is available to both Windows programs and MS-DOS programs started from Windows (they have to be adapted slightly, since accessing long file names requires using larger pathname buffers and hence different system calls). Competing DOS-compatible operating systems released before Windows 95 cannot see these names. Using older versions of DOS utilities to manipulate files means that the long names are not visible and are lost if files are moved or renamed, as well as by the copy (but not the original), if the file is copied. During a Windows 95 automatic upgrade of an older Windows 3.1 system, DOS and third-party disk utilities which can destroy long file names are identified and made unavailable (Microsoft Anti-Virus for Windows indicated that the upgrade program was itself a computer virus). When Windows 95 is started in DOS mode, e.g. for running DOS programs, low-level access to disks is locked out. In case the need arises to depend on disk utilities that do not recognize long file names, such as MS-DOS 6.x's defrag utility, a program called LFNBACK for backup and restoration of long file names is provided on the CD-ROM. The program is in the \ADMIN\APPTOOLS\LFNBACK directory of the Windows 95 CD-ROM.

32-bit

Windows 95 followed Windows for Workgroups 3.11 with its lack of support for older, 16-bit x86 processors, thus requiring an Intel 80386 (or compatible).

The introduction of 32-bit File Access in Windows for Workgroups 3.11 meant that 16-bit real mode MS-DOS is not used for managing the files while Windows is running, and the earlier introduction of the 32-bit Disk Access means that the PC BIOS is not used for managing hard disks. This essentially reduces MS-DOS to the role of a boot loader for the protected-mode Windows kernel. DOS can be used for running old-style drivers for compatibility, but Microsoft discourages using them, as this prevents proper multitasking and impairs system stability. Control Panel allows a user to see what MS-DOS components are used by the system; optimal performance is achieved when they are bypassed. The Windows kernel uses MS-DOS style real-mode drivers in Safe Mode, which exists to allow a user to fix problems relating to loading native, protected-mode drivers.

Internet Explorer

Windows 95 originally shipped without Internet Explorer, and the default network installation did not install TCP/IP, the network protocol used on the Internet. At the release date of Windows 95, Internet Explorer 1.0 was available, but only in the Plus! add-on pack for Windows 95, which was a separate product. The Plus! Pack did not reach as many retail consumers as the operating system itself (it was mainly advertised for its add-ons such as themes and better disk compression) but was usually included in pre-installed (OEM) sales, and at the time of Windows 95 release, the web was being browsed mainly with a variety of early web browsers such as Netscape (promoted by products such as Internet in a Box).

Windows 95 OEM Service Release 1 was the first release of Windows to include Internet Explorer (version 2.0) with the OS. While there was no uninstaller, it could be deleted easily if the user so desired. OEM Service Release 2 included Internet Explorer 3. The installation of Internet Explorer 4 on Windows 95 (or the OSR2.5 version preinstalled on a computer) gave Windows 95 active desktop and browser integration into Windows Explorer, known as the Windows Desktop Update. The CD version of the last release of Windows 95, OEM Service Release 2.5 (Version 4.00.950C), includes Internet Explorer 4, and installs it after Windows 95's initial setup and first boot is complete.

Only the 4.x series of the browser contained the Windows Desktop Update features, so anyone wanting the new shell had to install IE4 with the desktop update before installing a newer version of Internet Explorer. The last version of Internet Explorer supported on Windows 95 is Internet Explorer 5.5 which was released in 2000. Windows 95 shipped with Microsoft's own dial-up online service called The Microsoft Network.

Editions

A number of different editions of Windows 95 have been released. Only the original release was sold as a shrink-wrapped product, later editions were provided only to computer original equipment manufacturers (OEMs) for installation on new PCs. For this reason these editions are known as OEM Service Releases (OSR).

Together with the introduction of Windows 95, Microsoft released the Microsoft Plus! for Windows 95 pack, which contained a number of optional components for high-end (486) multimedia PCs, including Internet Explorer, DriveSpace, and additional themes.

Microsoft initially indicated to make updates available to Windows 95 every 6 months in the form of service packs. The first service pack was made available half a year after the original release and fixed a number of small bugs.

The second service pack mainly introduced support for new hardware. Most notably support for hard drives larger than 2 GiB in the form of the FAT32 file system. This release was never made available to end-users directly and was only sold through OEMs with the purchase of a new PC.

A full third service pack was never released, but two smaller updates to the second were released in the form of a USB Supplement (OSR 2.1) and the Windows Desktop Update (OSR 2.5). Both were available as stand-alone updates and as updated disc images shipped by OEMs.

Release	Code name	Release date	Version			Software components				Hardware support
			System properties[note 1]	System files[note 2]	Timestamp	MS-DOS	Internet Explorer	DriveSpace	DirectX[note 3]	FAT32	Infrared[17]	UDMA[18]	IRQ steering[19]	USB	AGP	MMX[20]	P6[21]
Windows 95 (retail and OEM)	Chicago	24 August 1995	4.00.950[note 4]		1995-07-11 09:50:00	7.0	N/A	2	N/A	No	No	No	No	No	No	Bugs	Bugs
Microsoft Plus! for Windows 95	Frosting		N/A	4.40.310	1995-07-14 04:40:00		1.0	3
Service Pack 1	N/A	14 February 1996[22]	4.00.950a	4.00.951[note 5]	1995-12-31 09:50:00		2.0[23]	2			Yes
OEM Service Release 1					1996-02-02 09:51:00
OEM Service Release 2	Detroit	24 August 1996	4.00.950 B	4.00.1111	1996-08-24 11:11:11	7.1	3.0	3	2.0a	Yes		Yes	Yes			Yes
USB Supplement to OSR2	N/A	27 August 1997[24]		4.03.1212[note 6] 4.03.1214[note 7]	1997-04-10 12:14:00									Yes	Yes
OEM Service Release 2.1
OEM Service Release 2.5		26 November 1997	4.00.950 C	4.03.1216[note 8]	1997-11-26 12:16:00		4.00[note 9]		5.0								Yes

1. ^ The version string displayed in the "System properties" tab. Right-click on "My Computer" and choose "Properties".
2. ^ The version of updated system files. Note that most system files that have not been updated retain their often retain their old version number. Version numbers are not consistently used: some system files may have older or newer build numbers or use a version numbering scheme separate from regular system files.
3. ^ Upgradable to 8.0a.
4. ^ This version of Windows 95 is sometimes called "950r6" because there were five prior release candidates of build 950. Release candidate 6 was the build that shipped in retail boxes.
5. ^ Some components have higher build numbers up to 955.
6. ^ Original release of the USB Supplement to OSR2.
7. ^ Updated version of the USB Supplement to OSR2.
8. ^ The Microsoft Knowledge Base reports 4.03.1214. The USB Supplement to OSR2 contains an updated VMM.VXD with support for the Pentium Pro and Pentium II. This file has version 4.03.1216 and has a timestamp of 1997-09-23 09:51:18.
9. ^ Installation can be cancelled using CTRL-ALT-DELETE two times in welcome screen of IE4 setup, also there is C:\WINDOWS\SYSTEM\IEREMOVE.EXE.

System requirements

Official system requirements were an Intel 80386 DX CPU of any speed, 4 MB of system RAM, and 50-55 MB of hard drive space depending on features selected. These minimal claims were made in order to maximize the available market of Windows 3.1 converts. This configuration was distinctly suboptimal for any productive use on anything but single tasking dedicated workstations due to the heavy reliance on virtual memory. Also, in some cases, if any networking or similar components were installed the system would refuse to boot with 4 megabytes of RAM. It was possible to run Windows 95 on a 386 SX but this led to even less acceptable performance due to its 16-bit external data bus. To achieve optimal performance, Microsoft recommends an Intel 80486 or compatible microprocessor with at least 8 MB of RAM.^[25]

Windows 95 was superseded by Windows 98 and could still be directly upgraded by both Windows 2000^[26] and Windows Me. On December 31, 2001, Microsoft ended its support for Windows 95, making it an "obsolete" product according to the Microsoft Lifecycle Policy.^[27] Even though support for Windows 95 has ended, the software still remains in use on some home and school computers because of budget issues, a lack of knowledge or lack of desire to upgrade to newer editions of Windows. In addition, some video game enthusiasts choose to use Windows 95 for their legacy system to play old DOS games, although some other versions of Windows such as Windows 98 can also be used for this purpose.

Windows 95 has been released on both floppy disks and on CD-ROM, as some computer systems at the time did not include a CD-ROM drive. The retail floppy disk version of Windows 95 came on 13 DMF formatted floppy disks, while OSR 2.1 doubled the floppy count to 26. Both versions exclude additional software that CD-ROM might have featured. Microsoft Plus! for Windows 95 was also available on floppy disks.

2 Gigabytes is the maximum supported hard drive space on the 1st version of Windows 95 and OSR1.

Legacy

Many features that became key components of the Microsoft Windows series, such as the start menu and the taskbar, originated in Windows 95. Neil MacDonald, a Gartner analyst, said "If you look at Windows 95, it was a quantum leap in difference in technological capability and stability." Windows 95 was the first version of Windows to be a standard factory install on the average PC. Ina Fried of CNET said "By the time Windows 95 was finally ushered off the market in 2001, it had become a fixture on computer desktops around the world."^[9]

Physical RAM limit

The maximum amount of physical RAM in a PC that Windows 95 supports is 480 MB.^[28]

Notes

1. ^ "Windows Life-Cycle Policy". Microsoft. 3 April 2008. http://www.microsoft.com/windows/lifecycle/default.mspx. Retrieved 6 September 2009. 
2. ^ ^{a b} David Segal (1995-08-24). "With Windows 95's Debut, Microsoft Scales Heights of Hype". Washington Post. http://www.washingtonpost.com/wp-srv/business/longterm/microsoft/stories/1995/debut082495.htm. Retrieved 2011-03-24. 
3. ^ Comes v. Microsoft. Plaintiff's Exhibit 1263.
4. ^ Comes v. Microsoft. Plaintiff's Exhibit 1308.
5. ^ Comes v. Microsoft. Plaintiff's Exhibit 1310.
6. ^ ^{a b c d e f g} Comes v. Microsoft. Plaintiff's Exhibit 1285.
7. ^ Microsoft detractors were quick to point out that the second verse of "Start Me Up" begins "you make a grown man cry" (a line which is repeated throughout). The phrase subsequently featured as a humorous reference in many critical expositions of Windows 95.
8. ^ Michael Gartenberg (22 August 2006). "The Story behind "Start Me Up" and Windows 95". JupiterResearch. Archived from the original on 14 December 2007. http://web.archive.org/web/20071214054208/http://weblogs.jupiterresearch.com/analysts/gartenberg/archives/016913.html. Retrieved 9 September 2009.  Internet Archive
9. ^ ^{a b} Fried, Ina. "Windows 95 turns 15: Has Microsoft's OS peaked?" CNET at CNN. August 25, 2010. Retrieved on August 26, 2010.
10. ^ "Edie Brickell - Good Times, Bad Times". YouTube.com. http://www.youtube.com/watch?v=xSA-CWme3pM. 
11. ^ "1995 MTV Video Music Awards on mtv.com". mtv.com. http://www.mtv.com/ontv/vma/1995. Retrieved 2011-01-04. 
12. ^ "How 16-Bit and 32-Bit Programs Multitask in Windows 95". support.microsoft.com. 2006-11-15. http://support.microsoft.com/kb/117567/EN-US/. Retrieved 2010-04-09. 
13. ^ "Windows 95 Architecture Components". Microsoft Technet. Microsoft. http://technet.microsoft.com/en-us/library/cc751120.aspx. Retrieved 2011-03-24. 
14. ^ ^{a b} Chen, Raymond (2008-12-24). "What was the role of MS-DOS in Windows 95?". The Old New Thing. MSDN.com. http://blogs.msdn.com/b/oldnewthing/archive/2007/12/24/6849530.aspx. Retrieved 2011-03-24. 
15. ^ Schulman 1994
16. ^ 255-character mixed-case long filename is possible only for files and/or folders with no sub-folders at the root folder of any drive.
17. ^ "Windows 95 Support for Infrared Data Association Connectivity". Microsoft. 15 November 2006. http://support.microsoft.com/kb/139445. Retrieved 9 September 2009. 
18. ^ "How to Enable Direct Memory Access (DMA)". Microsoft. 27 January 2007. http://support.microsoft.com/kb/258757. Retrieved 9 September 2009. 
19. ^ "Description of PCI Bus IRQ Steering". Microsoft. 22 January 2007. http://support.microsoft.com/kb/182604. Retrieved 9 September 2009. 
20. ^ "GP Fault or Fatal Exception Error on Intel MMX CPU". Microsoft. 15 November 2006. http://support.microsoft.com/kb/156492. Retrieved 9 September 2009. 
21. ^ "Memory Management Problems on Computers with Pentium Processors". Microsoft. 22 September 2005. http://support.microsoft.com/kb/179897. Retrieved 9 September 2009. 
22. ^ "Microsoft Releases Windows 95 Service Pack". Microsoft. 14 February 1996. http://www.microsoft.com/presspass/press/1996/feb96/srvcpkpr.mspx. Retrieved 9 September 2009. 
23. ^ "Description of Microsoft Windows 95 Service Pack 1 Components". Microsoft. 16 November 2006. http://support.microsoft.com/kb/146449. Retrieved 16 July 2010. 
24. ^ "How to Determine the Version of Windows 95/98/Me in Use". Microsoft. 12 May 2007. http://support.microsoft.com/kb/158238. Retrieved 9 September 2009. 
25. ^ "Windows 95 Installation Requirements". Microsoft. 23 April 2007. http://support.microsoft.com/kb/138349. Retrieved 9 September 2009. 
26. ^ "Microsoft.com". http://www.microsoft.com/windows2000/professional/howtobuy/upgrading/path/default.asp. 
27. ^ "Windows 95 Support: Contact Support". Microsoft. 13 December 2002. Archived from the original on May 22, 2007. http://web.archive.org/web/20070522053321/http://www.microsoft.com/windows95/support/contact/default.asp. Retrieved 9 September 2009.  Internet Archive
28. ^ Physical RAM limit for Windows 95.

References

Microsoft Knowledge Base

• Microsoft. KB146449: Description of Microsoft Windows 95 Service Pack 1 Components
• Microsoft. KB143003: Description of Microsoft Windows 95 Service Pack 1 Updates
• Microsoft. KB148761: Description of Windows 95 OEM Service Release 1
• Microsoft. KB253756: Availability of Universal Serial Bus Support in Windows 95
• Microsoft. KB161020: Implementing Windows 95 Updates

Articles

• Guardian Unlimited. Windows 95: The hype and beyond
• Washington Post. With Windows 95's Debut, Microsoft Scales Heights of Hype
• Microsoft. Windows 95 Installation Requirements
• Microsoft. Windows 95 end of support date

Further reading

Microsoft

• Microsoft. Microsoft Windows 95 Resource Kit.

Architecture

• Schulman, Andrew (1994). Unauthorized Windows 95: A Developer's Guide to Exploring the Foundations of Windows "Chicago". IDG Books. ISBN 978-1-56884-169-4. Archived from the original on June 15, 2006. http://web.archive.org/web/20060615065625/http://ftp.uni-mannheim.de/info/OReilly/windows/win95.update/unauthw.html. Retrieved 9 September 2009.  Internet Archive
• Matt Pietrek (1995). Windows 95 System Programming SECRETS. IDG Books. http://www.wheaty.net/w95spsdisk.htm. 

Television

• Computer Chronicles. "Windows 95".

External links

Microsoft portal

• "Windows 95." Microsoft.
• "Windows 95." Microsoft Windows.
• Microsoft Windows Update (from archive.org)
• HPC: Factor Windows 95 Patches & Updates Guide

hj:windows 95