Internet Explorer 6

6Internet Explorer 6.0IE66.0Version 6IE 6 Beta6.xIE 6Internet ExplorerInternet Explorer 6 SP1
Microsoft Internet Explorer 6 (IE6) is the sixth major revision of Internet Explorer, a web browser developed by Microsoft for Windows operating systems.wikipedia
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Internet Explorer

Microsoft Internet ExplorerIEMSIE
Microsoft Internet Explorer 6 (IE6) is the sixth major revision of Internet Explorer, a web browser developed by Microsoft for Windows operating systems. Despite dominating market share (attaining a peak of 90% in mid-2004), this version of Internet Explorer has been widely criticized for its security issues and lack of support for modern web standards, making frequent appearances in "worst tech products of all time" lists, with PC World labeling it "the least secure software on the planet."

Windows 2000

2000Windows 2000 ServerMicrosoft Windows 2000
It is the default browser shipped with Windows XP and Windows Server 2003, and was also made available for Windows NT 4.0, Windows 98, Windows 2000, and Windows Me.
Windows 2000 introduced many of the new features of Windows 98 and Windows 98 SE into the NT line, such as the Windows Desktop Update, Internet Explorer 5 (Internet Explorer 6, which followed in 2001, is also available for Windows 2000), Outlook Express, NetMeeting, FAT32 support, Windows Driver Model, Internet Connection Sharing, Windows Media Player, WebDAV support etc. Certain new features are common across all editions of Windows 2000, among them NTFS 3.0, the Microsoft Management Console (MMC), UDF support, the Encrypting File System (EFS), Logical Disk Manager, Image Color Management 2.0, support for PostScript 3-based printers, OpenType and Type 1 PostScript font support (including a new font—Palatino Linotype—to showcase some OpenType features ), the Data protection API (DPAPI), an LDAP/Active Directory-enabled Address Book, usability enhancements and multi-language and locale support.

Internet Explorer 7

7IE7version 7
Microsoft planned to fix these issues in Internet Explorer 7 by June–August 2005, but it was delayed until an October 2006 release, over 5 years after IE6 debuted.
It is the default browser in Windows Vista and Windows Server 2008 and can replace Internet Explorer 6 on Windows XP and Windows Server 2003 but unlike version 6, this version does not support Windows NT 4.0, Windows 98, Windows 98 SE, Windows 2000, and Windows Me.

Trident (software)

TridentTrident layout engineMSHTML
It and its layout engine Trident are required for many programs including Microsoft Encarta.
Although each version of IE has improved standards support, including the introduction of a "standards-compliant mode" in version 6, the core standards that are used to build web pages (HTML and CSS) were sometimes implemented in an incomplete fashion.

Internet Explorer 5

Internet Explorer 5.0Internet Explorer 5.55
When IE6 was released, it included a number of enhancements over its predecessor, Internet Explorer 5. IE6 was the most widely used web browser during its tenure, surpassing Internet Explorer 5.x. At its peak in 2002 and 2003, IE6 attained a total market share of nearly 90%, with all versions of IE combined reaching 95%.
5.0x and 5.5 were surpassed by Internet Explorer 6.0, dropping it to the second most popular browser, with market share dropping to 34 percent by mid-2003.

Usage share of web browsers

usage sharebrowser market sharemarket share
IE6 was the most widely used web browser during its tenure, surpassing Internet Explorer 5.x. At its peak in 2002 and 2003, IE6 attained a total market share of nearly 90%, with all versions of IE combined reaching 95%.

Firefox

Mozilla FirefoxFirefox browserSpread Firefox
In 2004, Mozilla finalised Firefox to rival IE6, and it became highly popular and acclaimed for its security, add-ons, speed and other modern features such as tabbed browsing.
During its beta phase, Firefox proved to be popular with its testers and was praised for its speed, security, and add-ons compared to Microsoft's then-dominant Internet Explorer 6.

CSS box model

Internet Explorer box model bugbox modelThe bug
IE6 improved support for Cascading Style Sheets, adding a number of properties that previously had not been implemented and fixing bugs such as the Internet Explorer box model bug.
As of Internet Explorer 6, the browser supports an alternative rendering mode (called the "standards-compliant mode") which solves this discrepancy.

Document Object Model

DOMDocument Object Model (DOM)DOM tree
In addition, IE6 added DHTML enhancements, content restricted inline frames, and partial support of DOM level 1 and SMIL 2.0.
By 2005, large parts of W3C DOM were well-supported by common ECMAScript-enabled browsers, including Microsoft Internet Explorer version 6 (from 2001), Opera, Safari and Gecko-based browsers (like Mozilla, Firefox, SeaMonkey and Camino).

Windows 98

98Microsoft Windows 98Windows 98 Second Edition
It is the default browser shipped with Windows XP and Windows Server 2003, and was also made available for Windows NT 4.0, Windows 98, Windows 2000, and Windows Me.

Windows Me

MEWindows Millennium EditionMillennium
It is the default browser shipped with Windows XP and Windows Server 2003, and was also made available for Windows NT 4.0, Windows 98, Windows 2000, and Windows Me.

Cascading Style Sheets

CSSCSS3Cascading Style Sheet
IE6 improved support for Cascading Style Sheets, adding a number of properties that previously had not been implemented and fixing bugs such as the Internet Explorer box model bug.
The IE/Windows box model bugs were so serious that, when Internet Explorer 6 was released, Microsoft introduced a backwards-compatible mode of CSS interpretation ('quirks mode') alongside an alternative, corrected 'standards mode'.

MSXML

Microsoft XMLMicrosoft XML Core ServicesMicrosoft XML Library
The MSXML engine was also updated to version 3.0.

Internet Explorer 4

Internet Explorer 4.04Version 4
Internet Explorer 6 dropped Compatibility Mode, which allowed Internet Explorer 4 to be run side by side with 5.x. Instead, IE6 introduced quirks mode, which causes it to emulate many behaviors of IE 5.5.
In August 2001 when Internet Explorer 6 was released, IE4.x had dropped to 7% market share and IE5 had increased to 80%.

Windows XP

XPMicrosoft Windows XPWindows XP SP2
It is the default browser shipped with Windows XP and Windows Server 2003, and was also made available for Windows NT 4.0, Windows 98, Windows 2000, and Windows Me. It was released on August 27, 2001, shortly after the completion of Windows XP.
Subsequent builds gradually introduced features that users of the release version of Windows XP would recognise, such as Internet Explorer 6.0, the Microsoft Product Activation system and the Bliss desktop background.

Windows Embedded Industry

Windows Embedded for Point of ServiceWindows Embedded POSReady 2009Industry
However, on January 12, 2016 when the new Microsoft Lifecycle Support policy for Internet Explorer went into effect, IE6 support on all Windows versions ended, more than 14 years after its original release, making the January 2016 security update for multiple versions of XP Embedded the last that Microsoft publicly issued for IE6.
When the new Microsoft Lifecycle Support policy for Internet Explorer went into effect on January 12, 2016, IE6 support was dropped from not only WEPOS, but all other supported platforms.

Smart tag (Microsoft)

smart tagsSmart tagMicrosoft Smart Tags
Smart tags are an early selection-based search feature, found in later versions of Microsoft Word and beta versions of the Internet Explorer 6 web browser, by which the application recognizes certain words or types of data and converts it to a hyperlink.

Microsoft Windows

WindowsPCMS Windows
Microsoft Internet Explorer 6 (IE6) is the sixth major revision of Internet Explorer, a web browser developed by Microsoft for Windows operating systems. However, on January 12, 2016 when the new Microsoft Lifecycle Support policy for Internet Explorer went into effect, IE6 support on all Windows versions ended, more than 14 years after its original release, making the January 2016 security update for multiple versions of XP Embedded the last that Microsoft publicly issued for IE6.
Windows XP would also introduce a redesigned user interface (including an updated Start menu and a "task-oriented" Windows Explorer), streamlined multimedia and networking features, Internet Explorer 6, integration with Microsoft's .NET Passport services, modes to help provide compatibility with software designed for previous versions of Windows, and Remote Assistance functionality.

Windows NT 4.0

NT 4.0Windows NT 4NT 4
It is the default browser shipped with Windows XP and Windows Server 2003, and was also made available for Windows NT 4.0, Windows 98, Windows 2000, and Windows Me.
Service Pack 6, the last service pack for Windows NT 4, included Internet Explorer 5.01 although it also supports Internet Explorer 6.0.

Windows XP editions

Windows XP EmbeddedWindows XP Tablet PC EditionWindows XP Professional
Microsoft themselves eventually began their own campaign to encourage users to stop using IE6, though stating that they would support IE6 until Windows XP SP3 (including embedded versions) support is removed.
Windows XP x64 Edition includes both 32- and 64-bit versions of Internet Explorer 6, in order to allow for the possibility that some third-party browser plugins or ActiveX controls may not yet be available in 64-bit versions.

Windows Server 2003

Server 20032003Windows Server 2003 R2
It is the default browser shipped with Windows XP and Windows Server 2003, and was also made available for Windows NT 4.0, Windows 98, Windows 2000, and Windows Me.

Web browser

browserweb browsersinternet browser
Microsoft Internet Explorer 6 (IE6) is the sixth major revision of Internet Explorer, a web browser developed by Microsoft for Windows operating systems.

Microsoft

Microsoft CorporationMicrosoft Corp.MS
Microsoft Internet Explorer 6 (IE6) is the sixth major revision of Internet Explorer, a web browser developed by Microsoft for Windows operating systems.

PC World

PCWorldPC World MagazinePC World (magazine)
Despite dominating market share (attaining a peak of 90% in mid-2004), this version of Internet Explorer has been widely criticized for its security issues and lack of support for modern web standards, making frequent appearances in "worst tech products of all time" lists, with PC World labeling it "the least secure software on the planet."

Mozilla

Mozilla LabsMozilla ResearchFirefox Marketplace
In 2004, Mozilla finalised Firefox to rival IE6, and it became highly popular and acclaimed for its security, add-ons, speed and other modern features such as tabbed browsing.