HTMLHELP11

When HTMLHELP11 is defined the interface unit assumes HTML Help version 1.1. Features which we're introduced in later versions of HTML Help are not available and some of the constants have different names. The directive is mutually exclusive with HTMLHELP12. For the exact differences between version 1.1 and 1.2 search the interface unit for "$IFDEF HTMLHELP11" and "$IFDEF HTMLHELP12".