Dear Steve,
Please call BeginInit() and EndInit() method of the control after you add the control to the form. You dont need to add the factory buttons like cHTML.Toolbar1.Items.Add(cHTML._factoryBtnBold)
, it will be added automatically. Here is the example,
HTMLEditor myEditor = new HTMLEditor();
this.Controls.Add(myEditor);
myEditor.BeginInit();
myEditor.EndInit();