(See \helpref{wxHtmlHelpController}{wxhtmlhelpcontroller} for help controller description.)
-A {\bf book} consists of three files : header file, contents file and index file.
+A {\bf book} consists of three files: header file, contents file and index file.
+You can make a regular zip archive of these files, plus the HTML and any image files,
+for wxHTML (or helpview) to read; and the .zip file can optionally be renamed to .htb.
\wxheading{Header file (.hhp)}
Charset=@rfc_charset@
\end{verbatim}
-which specifies what charset (e.g. "iso8859_1") was used in contents
+which specifies what charset (e.g. "iso8859\_1") was used in contents
and index files. Please note that this line is incompatible with
MS HTML Help Workshop and it would either silently remove it or complain
with some error. See also