Registers the specified help file
                           (.qch) in the given collection
                           file.
-unregister helpFile       Unregisters the specified help file
                           (.qch) from the give collection
                           file.
-setCurrentFilter filter   Set the filter as the active filter.
-remove-search-index       Removes the full text search index.
-rebuild-search-index      Re-builds the full text search index (potentially slow).
-quiet                     Does not display any error or
                           status message.
-help                      Displays this help.