-(the latter stands for "HTML book"). In other words, {\tt AddBook("help.zip")} is possible and, in fact,
-recommended way.
+(the latter stands for "HTML book"). In other words, {\tt AddBook(wxFileName("help.zip"))}
+is possible and is the recommended way.
+
+\wxheading{Parameters}
+
+\docparam{showWaitMsg}{If true then a decoration-less window with progress message is displayed.}
+\docparam{bookFile}{Help book filename. It is recommended to use this prototype
+instead of the one taking URL, because it is less error-prone.}
+\docparam{bookUrl}{Help book URL (note that syntax of filename and URL is
+different on most platforms)}
+
+\wxheading{Note}
+
+Don't forget to install wxFileSystem ZIP handler with
+{\tt wxFileSystem::AddHandler(new wxZipFSHandler);} before calling this method
+on a .zip or .htb file!
+
+\membersection{wxHtmlHelpController::CreateHelpDialog}\label{wxhtmlhelpcontrollercreatehelpdialog}