There is a number of articles that describe every aspect of the Form-Host. Use this page to locate an article you want. The articles are grouped by first letters of their names. Clicking on buttons below will list the appropriate articles. The recently modified articles are listed first by default.
Click on an article name to open and read the article. It will open in a PDF viewer. The viewer will open as a pop-up over this web page. Alternatively, you can press CTRL while clicking on the article and open the viewer in a new browser tab.
The article in the viewer can be enlarged and download it if needed.