39 Facts About Internet Explorer

Internet Explorer is a discontinued series of graphical web browsers developed by Microsoft which was used in the Windows line of operating systems (in Windows 11, Windows Server Insider Build 22463 and Windows Server Insider Build 25110, it is replaced by the Chromium version of Microsoft Edge).

Full support for Internet Explorer was discontinued on June 15, 2022, with the alternative being Microsoft Edge's IE compatibility mode for legacy sites that require it.

Internet Explorer project was started in the summer of 1994 by Thomas Reardon, who, according to the Massachusetts Institute of Technology Review of 2003, used source code from Spyglass, Inc Mosaic, which was an early commercial web browser with formal ties to the pioneering National Center for Supercomputing Applications Mosaic browser.

The Internet Explorer team began with about six people in early development.

Internet Explorer 2 is the second major version of Internet Explorer, released on November 22, 1995, for Windows 95 and Windows NT, and on April 23, 1996, for Apple Macintosh and Windows 3.

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Internet Explorer 3 is the third major version of Internet Explorer, released on August 13, 1996, for Microsoft Windows and on January 8, 1997, for Apple Mac OS.

Internet Explorer 4 is the fourth major version of Internet Explorer, released in September 1997 for Microsoft Windows, Mac OS, Solaris, and HP-UX.

Internet Explorer 5 is the fifth major version of Internet Explorer, released on March 18, 1999, for Windows 3.

Internet Explorer 6 is the sixth major version of Internet Explorer, released on August 24, 2001, for Windows NT 4.

Internet Explorer 7 is the seventh major version of Internet Explorer, released on October 18, 2006, for Windows XP SP2, Windows Server 2003 SP1 and as the default web browser for Windows Vista, Windows Server 2008 and Windows Embedded POSReady 2009.

Internet Explorer 8 is the eighth major version of Internet Explorer, released on March 19, 2009, for Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008 and as the default web browser for Windows 7 and Windows Server 2008 R2.

Internet Explorer 9 is the ninth major version of Internet Explorer, released on March 14, 2011, for Windows 7, Windows Server 2008 R2, Windows Vista Service Pack 2 and Windows Server 2008 SP2 with the Platform Update.

Internet Explorer 10 is the tenth major version of Internet Explorer, released on October 26, 2012, for Windows 7, Windows Server 2008 R2 and as the default web browser for Windows 8 and Windows Server 2012.

Internet Explorer 11 was made available for Windows 7 users to download on November 7, 2013, with Automatic Updates in the following weeks.

Microsoft claimed that Internet Explorer 11, running the WebKit SunSpider JavaScript Benchmark, was the fastest browser as of October 15, 2013.

Internet Explorer 11 was made available for Windows Server 2012 and Windows Embedded 8 Standard, the only still supported edition of Windows 8 in the spring of 2019.

Internet Explorer is still installed in Windows 10 and 11 to maintain compatibility with older websites and intranet sites that require ActiveX and other Microsoft legacy web technologies.

Internet Explorer was removed from the Start menu in Windows 11 but can still be launched via other means such as the Help button in Control Panel's Internet Options and PowerShell.

Since November 30, 2020, the web version of Microsoft Teams can no longer be accessed using Internet Explorer 11, followed by the remaining Microsoft 365 applications since August 17, 2021.

On June 15, 2022, the desktop application of Internet Explorer 11 reached end of support for consumer versions of Windows 10, now redirecting to Microsoft Edge, marking the end of its existence.

Internet Explorer has been designed to view a broad range of web pages and provide certain features within the operating system, including Microsoft Update.

Internet Explorer uses DOCTYPE sniffing to choose between standards mode and a "quirks mode" in which it deliberately mimics nonstandard behaviors of old versions of MSIE for HTML and CSS rendering on screen.

Internet Explorer was criticized by Tim Berners-Lee for its limited support for SVG, which is promoted by W3C.

Internet Explorer has introduced an array of proprietary extensions to many of the standards, including HTML, CSS, and the DOM.

Internet Explorer has introduced several extensions to the DOM that have been adopted by other browsers.

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Internet Explorer makes use of the accessibility framework provided in Windows.

Internet Explorer is a user interface for FTP, with operations similar to Windows Explorer.

Internet Explorer caches visited content in the Temporary Internet Files folder to allow quicker access to previously visited pages.

Internet Explorer uses a componentized architecture built on the Component Object Model technology.

Internet Explorer 8 includes the bindings for the Active Scripting engine, which is a part of Microsoft Windows and allows any language implemented as an Active Scripting module to be used for client-side scripting.

Internet Explorer 8 introduced some major architectural changes, called loosely coupled IE.

Internet Explorer exposes a set of Component Object Model interfaces that allows add-ons to extend the functionality of the browser.

Windows 8 and Windows RT introduce a Metro-style version of Internet Explorer that is entirely sandboxed and does not run add-ons at all.

Internet Explorer uses a zone-based security framework that groups sites based on certain conditions, including whether it is an Internet- or intranet-based site as well as a user-editable whitelist.

Internet Explorer 7 introduced the phishing filter, which restricts access to phishing sites unless the user overrides the decision.

Much of the spyware, adware, and computer viruses across the Internet are made possible by exploitable bugs and flaws in the security architecture of Internet Explorer, sometimes requiring nothing more than viewing of a malicious web page to install themselves.

In 2008, Internet Explorer had a number of published security vulnerabilities.

German government warned users against using Internet Explorer and recommended switching to an alternative web browser, due to the major security hole described above that was exploited in Internet Explorer.

Adoption rate of Internet Explorer seems to be closely related to that of Microsoft Windows, as it is the default web browser that comes with Windows.