Automatically open downloaded MHT or MHTML files from the web in Internet Explorer mode
Supported on: Microsoft Edge version 117, Windows 7 or later
Registry
Software\Policies\Microsoft\Edge Software\Policies\Microsoft\Edge Value name: InternetExplorerIntegrationZoneIdentifierMhtFileAllowed
Enabled: InternetExplorerIntegrationZoneIdentifierMhtFileAllowed = 1
Disabled: InternetExplorerIntegrationZoneIdentifierMhtFileAllowed = 0
Description
This policy controls whether MHT or MHTML files that are downloaded from the web are automatically opened in Internet Explorer mode. If you enable this policy, the MHT or MHTML files that are downloaded from the web can be opened in both Microsoft Edge and Internet Explorer mode to provide the best user experience. If you disable or don't configure this policy, MHT or MHTML files that are downloaded from the web won't automatically open in Internet Explorer mode. To learn more about Internet Explorer mode, see https://go.microsoft.com/fwlink/?linkid=2094210