MSGPGS resource determines if MHonArc will generate HTML pages for messages processed. If set, pages will be created for each processed messages as defined by message page layout.
If MSGPGS is not set, no message pages will be created. Having no message pages created may be desired if you only want to use MHonArc for its index page generation. Note, relevant resources that link to message pages would have to be redefined to use URLs that properly retrieve messages from how they are stored on the system.
When MSGPGS is off, messge body data is skipped when processing input data. Hence, processing time is much faster since no message conversion is performed. The database file is still created to support updates to the index pages generated.