|Initial release||August 1997|
|Operating system||Microsoft Windows|
MSHTML debuted with the release of Internet Explorer 4 in 1997. For versions 7 and 8 of Internet Explorer, Microsoft made significant changes to MSHTML's layout capabilities to improve compliance with Web standards and add support for new technologies.
Use in software development
MSHTML was designed as a
|MSHTML version||MSHTML.dll version||Internet Explorer version||Internet Explorer Mobile version||Notes|
|No version||4.0.x||4.0||—||Initial version.|
|5.0.x||5.0||—||Improved CSS 1 support and had sweeping changes in CSS 2 rendering.|
|—||Corrected issues with CSS handling.|
|6.0.x||6.0||—||Corrected the |
|7.0.x||7.0||—||Fixed many CSS rendering issues and added partial |
|—||—||6.0||IEMobile 6 combines many features of IE 6, 7, and 8.|
|3.1||7.0||—||7.0||Second port on a mobile system of MSHTML. IE Mobile version for Windows Phone 7.|
|4.0||8.0.x||8.0||—||First version to pass the|
|5.0||9.0.x||9.0||9.0||Added support for|
|6.0||10.0.x||10.0||10.0||More support for|
|7.0||11.0.x||11.0||11.0||Support for WebGL and SPDY. Improved support for HTML5. Speed improvement. Included in Windows Phone 8.1.|
All versions of
Some other MSHTML-based applications include:
- AOL Explorer, a web browser
- AOL Instant Messenger6.x, which uses MSHTML to render conversation and profile windows, and advertisement panels
- Avant Browser
- EA Link, incompatible with MSHTML as of Internet Explorer 7 RC2
- Flashpoint Secure Player, uses MSHTML to run ActiveX based web games
- Google Talk, which used MSHTML to render chat windows and profile cards
- GreenBrowser, which is also presented at the BrowserChoice.eu page
- IE Tab, a Firefox and Google Chrome add-on used to render pages with MSHTML within the Firefox or Chrome user interface.
- Impulse (content delivery), uses MSHTML to render "Explore" page, as well as several of the "Community" pages
- LimeWire, which renders the page 'New@Lime'
- Lunascape, developed by Lunascape Corporation
- Maxthon, which uses the MSHTML engine while adding features not built into IE7
- MediaBrowser, customized browsers, especially for Nintendo
- MenuBox, a web browser
- Microsoft Compiled HTML Help
- Microsoft Encarta and related products
- Microsoft InfoPath
- Microsoft Outlook which uses MSHTML to render HTML Messages (prior to Outlook 2007) and the "Outlook Today" screen
- Microsoft Outlook Express, which uses MSHTML to render HTML Messages
- Microsoft Visual InterDev 6 uses MSHTML in editing mode as visual HTML designer
- Microsoft Visual Studio 2002-2005 use MSHTML in editing mode to provide visual ASP.NET/HTML designer
- Microsoft Visual Studio and Visual Basic to render the WebBrowser control
- MSN Messenger, which uses it to produce Flash-based "winks" and games, and for all advertisements shown in the advertisement banner
- NeoPlanet, a web browser
- NetCaptor, a web browser
- Netscape Browser (Netscape 8), which used MSHTML to render web pages in IE mode
- Pyjs, a python Widget set Toolkit. Embedding IWebBrowser2 as an Active-X component and accessing the COM interface, Pyjs uses MSHTML for the Desktop version, through the python win32 "comtypes" library.
- Sleipnir, a web browser
- SlimBrowser, a web browser
- VoIPthat renders HTML data with MSHTML
- Tencent Traveler, a web browser
- Windows Live Writer, which uses MSHTML for its editor
- Windows Media Player, which uses MSHTML to render the "Media Information" pages
- WinRAR, A decompression program.
- 360 Secure Browser, a web browser in China
- Baidu Browser, a web browser in China, that also had a proxy for some websites
Current versions of MSHTML, as of Internet Explorer 9 have introduced support for CSS 3, HTML5, and SVG, as well as other modern web standards. Web standards compliance was gradually improved with the evolution of MSHTML. 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. For example, there was no support for the
<abbr> element which is part of the HTML 4.01 standard prior to IE 8. There were also some CSS attributes missing from MSHTML, like min-height, etc. as of IE 6. As of Internet Explorer 8 CSS 2.1 is fully supported as well as some CSS 3.0 attributes. This lack of standards compliance has been known to cause rendering bugs and lack of support for modern web technologies, which often increases development time for web pages. Still, HTML rendering differences between standards-compliant browsers are not yet completely resolved.
Apart from MSHTML, Microsoft also has and uses several other layout engines. One of them, known as
In 2014, MSHTML was forked to create the engine EdgeHTML for Microsoft Edge on Windows 10. The new engine is "designed for interoperability with the modern web" and deprecates or removes a number of legacy components and behaviors, including document modes, ensuring that pure, standards-compliant HTML will render properly in browsers without the need for special considerations by web developers. This resulted in a completely new browser called Microsoft Edge (now referred to as "Microsoft Edge Legacy"), which replaced Internet Explorer as a stock browser of Windows and a base of Microsoft's web related services until its replacement with a Blink and Chromium based Microsoft Edge in late 2020.
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Microsoft is committed to supporting Internet Explorer mode in Microsoft Edge through at least 2029, on supported operating systems.
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SharePoint Designer doesn't use Trident. SharePoint Designer, Expression Web, and the next version of Visual Studio's Visual Web Designer (code name Orcas) all use the same standards-based web design component. This component was developed jointly by the three product teams for high fidelity rendering of web standards like CSS, XHTML, as well as ASP.net.
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The new Microsoft Edge is based on Chromium and was released on January 15, 2020
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