The INCLUDE tag allows the DLL to display the content from another HTML page within the parent page.
During a web session, the information from an include_name.html page is pulled into the page containing the tag. For example, the Uhome.html page (the Main Menu form) contains a tag to display the menu from include_menu.html.
<#INCLUDE filename="include_menu.html">is an "include" tag and references another .html file, include_menu.html.