appropriate class is aliased to the name wxHelpController for each platform, as follows:
\begin{itemize}\itemsep=0pt
-\item On Windows, wxWinHelpController is used.
+\item On desktop Windows, wxCHMHelpController is used (MS HTML Help).
+\item On Windows CE, wxWinceHelpController is used.
\item On all other platforms, wxHtmlHelpController is used if wxHTML is
compiled into wxWidgets; otherwise wxExtHelpController is used (for invoking an external
browser).
{\bf both} CHM and HTB versions of the help file. For 32bit Windows only.
\item wxExtHelpController, for controlling external browsers under Unix.
The default browser is Netscape Navigator. The 'help' sample shows its use.
+\item wxWinceHelpController, for controlling a simple {\tt .htm} help controller for Windows CE applications.
\item \helpref{wxHtmlHelpController}{wxhtmlhelpcontroller}, a sophisticated help controller using \helpref{wxHTML}{wxhtml}, in
a similar style to the Microsoft HTML Help viewer and using some of the same files.
Although it has an API compatible with other help controllers, it has more advanced features, so it is