I have a C# solution that makes use of Smith Html Editor (I\'m developing on the main project which uses this, so I don\'t know much about this library), which makes a refer
CD C:\Program Files (x86) [Enter]
CD Microsoft Visual Studio\2019 [Enter]
CD Community\Common7\IDE\PublicAssemblies [Enter]
gacutil -i Microsoft.mshtml.dll [Enter]
exit
(I wrote these on seperate lines since word-wrap made it confusing to read).