Microsoft Edge was earlier criticized for lack of support for the legacy MSHTML engine for backwards compatibility, which makes it unable to support legacy technologies such as ActiveX and Browser Helper Objects, instead relying on an extension system.

Now, the company's move to rework the Edge browser with Chromium engine, replacing its age-long EdgeHTML engine, has opened it up for support on older Windows version, including going cross-platform, with promised addition of new Internet Explorer (IE) mode.

Unlike what's obtainable with the dual-browser approach by Windows 10, the IE mode would be able to seamlessly render legacy IE-only content within Microsoft Edge.

The IE mode is currently available in the Dev build, albeit IE-on-Edge would rely on Enterprise Mode and Enterprise Mode Site List, as applicable on IE11 and old-Edge, so that IT admins can designate sites that require IE and those for the Edge browser.

Microsoft is touting the new capabilities of Chromium Edge as one of the strong cases as to why enterprises should switch to the new Edge. It also made available attachments in .zip format containing ADMX and ADML files, which outlined what is to be implemented as group policies on Windows system.

This latest move by Microsoft has been interpreted as possibility of eventual elimination of the stand-alone IE11, with users left only the option of using IE mode on Edge, though support for corporate customers would remain for those who are eligible for the Extended Security Updates (ESR) available till January 2023.

Microsoft looks to IE Mode for Edge to support legacy MSHTML engine for backwards compatibility



Microsoft Edge was earlier criticized for lack of support for the legacy MSHTML engine for backwards compatibility, which makes it unable to support legacy technologies such as ActiveX and Browser Helper Objects, instead relying on an extension system.

Now, the company's move to rework the Edge browser with Chromium engine, replacing its age-long EdgeHTML engine, has opened it up for support on older Windows version, including going cross-platform, with promised addition of new Internet Explorer (IE) mode.

Unlike what's obtainable with the dual-browser approach by Windows 10, the IE mode would be able to seamlessly render legacy IE-only content within Microsoft Edge.

The IE mode is currently available in the Dev build, albeit IE-on-Edge would rely on Enterprise Mode and Enterprise Mode Site List, as applicable on IE11 and old-Edge, so that IT admins can designate sites that require IE and those for the Edge browser.

Microsoft is touting the new capabilities of Chromium Edge as one of the strong cases as to why enterprises should switch to the new Edge. It also made available attachments in .zip format containing ADMX and ADML files, which outlined what is to be implemented as group policies on Windows system.

This latest move by Microsoft has been interpreted as possibility of eventual elimination of the stand-alone IE11, with users left only the option of using IE mode on Edge, though support for corporate customers would remain for those who are eligible for the Extended Security Updates (ESR) available till January 2023.

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