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Enterprise Mode is a new feature in Internet Explorer that allows businesses to use old web applications in modern versions of IE. This feature is designed to help businesses who still need Internet Explorer 8 for some reason to upgrade to a more modern, secure browser.

This feature is arriving in Internet Explorer 11 as part of Windows 8.1 Update 1, and will also be available as an update to IE 11 on Windows 7.

How It Works
Internet Explorer’s Enterprise Mode is a special compatibility mode in Internet Explorer 11. A website that loads in Enterprise Mode renders like it did in Internet Explore 8. Some businesses have standardized on older versions of Internet Explorer and may use internal web applications that just don’t function with modern versions of Internet Explorer. Rather than stick with Internet Explorer 8 on Windows XP, which is reaching the end of its long life, Microsoft wants to encourage these businesses to upgrade to a modern version of Windows and Internet Explorer.

Websites can’t ask to be rendered in this mode, and it won’t appear in the normal menus as an option for typical users. Microsoft wants businesses to provide their own list of websites that will be automatically loaded in Enterprise Mode. It’s also available as a menu option that can be toggled on and off, but this menu option is hidden by default and must be enabled in the group policy editor.

If all your web applications work fine in modern versions of Internet Explorer, this feature isn’t for you. However, if you’re stuck with Internet Explorer 8 and can’t let it go, this feature is designed so you can upgrade.
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