When IE Mode is used, looking in task manager or Sysinternals procmon we see that msedge.exe has launched iexplore.exe with a special command line: Looking at this folder and its contents, it keeps a small file for every page viewed in IE Mode. Using IE Mode also generates a new folder in the “%LocalAppData%\Microsoft\Edge\User Data\Default” location called DualEngine: This is indicated via the “%LocalAppData%\Microsoft\Internet Explorer\EmieSiteListDualEngine “ folder which contains a container.dat file only:ĭiving into the webcache and its contents is one step too far for this blog so suffice to say this has been looked into by us here at Avanite. The Enterprise Mode Site List is also stored in the webcache database in a new container called “EmieSiteListDualEngine”. If these are set, it downloads the EMIE Site List to the “%LocalAppData%\Microsoft\Edge\User Data” folder in the form of an EmieSiteList.xml file: When Edge Chromium launches it checks the policies to see if the IE Integration has been enabled and where the EMIE Site List is stored. Now a few observations on what is going on here. Navigating to (it was added to the site list) we can see that when IE Mode is configured we get an IE icon showing to the left of the URL bar: Having enabled the above policies IE mode appears to be working. The policies were applied at the Computer level via standard AD Group Policy here but believe this can also be done at the User level. Suffice to say we used the site manager to create an XML file, configured the following policies to enable IE Mode and used the generated XML file for the configuration. We won’t go into details around how to use the Enterprise Mode Site List Manager (schema v.2) or how to deploy an EMIE xml file here. The following investigation has been completed using the 79.0.309.71 build. Since the GA release of Microsoft’s Edge Chromium Browser there have been three versions released on the stable channel at the time of writing: There was an outstanding question around how to handle IE Mode/EMIE which this post picks up on. In an earlier blog post, we explored how to roam the user preferences/settings for the new Microsoft Edge Chromium browser.
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