reconfigure domain commandline parameters

[rolo@]

What's the difference among these? I can't seem to find a list of parameters and their explanations for websrvmng

/usr/local/psa/admin/bin/websrvmng -u --vhost-name=domain.com

/usr/local/psa/admin/sbin/websrvmng --reconfigure-vhost --vhost-name=domain.com

/usr/local/psa/admin/sbin/websrvmng -a -v

Thanks,
Rolo