[HH.exe's command options]
FWIW, it must have something along those lines...
This page: http://www.help-info.de/en/Help_Info_HTMLHelp/hh_command.htm seems to document a few such options for hh.exe. I didn't try any.
The command itself doesn't seem to respond to any of the typical command-line options to get help on usage, bummer.
Regards,
/Emil