Simple Windows Forms HTML Editor based on TinyMCE and BrutalDeveloper blog post.
BrutalDeveloper post was based on older version of TinyMCE and used popups, that are not working correctly on newer operating systems. This version uses TinyMCE 4, that no longer requires popups and also has some new features.
It is also possible to enable/ disable additional TinyMCE features in TinyMCE Settings
Tested and working on Windows 10.