MSHTML Html Editor ActiveX is an ActiveX component for programmers that lets you control certain properties, characteristics and functions of the
Internet Explorer browser, for example: you can apply certain style sheets, automate operations, filter HTML pages, etc.
Thanks to the ActiveX, once it has been correctly installed and the DLL registered, you can also, via code, apply different functions and controls.
MSHTML Html Editor ActiveX also lets you run, from the browser setting, other Windows applications, that interrelate with the browser.