There are three main ways to get these extensions into FrontPage:
FrontPage supports both CF_HTML and CF_TEXT formats. There is no attempt to ever turn CF_TEXT into HTML or vice versa. Drag and drop operations work just like their copy and paste equivalents. FrontPage allows you to drop in text itself, or text and HTML files. Just drop the files you create onto the web page and they are automatically handled - a no-coding extensibility solution!