-match is found, the file is displayed at this section. If more than one
-match is found, the Search dialog is displayed with the matches (wxHelp)
-or the first topic is displayed (Windows Help).
+match is found, the file is displayed at this section.
+
+{\it wxHelp:} If more than one
+match is found, the Search dialog is displayed with the matches.
+
+{\it WinHelp:} If more than one match is found,
+the first topic is displayed.
+
+{\it External HTML help:} If more than one match is found,
+a choice of topics is displayed.