My advise: vpncmd --help
[code]
vpncmd.exe myVPNDomain:5555 /SERVER /HUB:VPN /PASSWORD verySecret /CMD UserList
[/code]
Attention: The Help says /PASSWORD:mySecretPassword but it's /password mySecretPassword or alternativ /PASSWORD "mySecretPW"
And start vpncmd without the /CMD Part to find more informations about creating/deleating users. The included "help" command is your friend