I'm sure that the stand-alone application will be killed, but I highly doubt that the actual rendering and js engines will be excised from the OS entirely. For

I'm sure that the stand-alone application will be killed, but I highly doubt that the actual rendering and js engines will be excised from the OS entirely. For example, there are a lot of legacy applications out there whose help documentation is in CHTML files [0][1] (*.chm). The CHTML viewer uses IE (unsure of the exact version.... maybe 6?). I can't imagine this going completely away any time soon, so I suspect that the dlls will still reside somewhere in the OS for a long long time to come. Off hand, the Help for WinMerge is leveraging this framework [2]. Edit: I also think that the rendering engine of Outlook uses some legacy version of the IE html/js engines. Again, it might be 6... (maybe not) [0] https://en.wikipedia.org/wiki/Microsoft_Compiled_HTML_Help https://en.wikipedia.org/wiki/Microsoft_Compiled_HTML_Help [1] https://stackoverflow.com/questions/9074912/creating-chm-file#9075002 https://stackoverflow.com/questions/9074912/creating-chm-fil... [2] https://imgur.com/a/Q8us4WB https://imgur.com/a/Q8us4WB