Quick how-to:
1. Server: To give or remove a user access permissions:

       hvremote /add:domain\user                  or
       hvremote /remove:domain\user

2. Server & Client: Display current settings (server or client): (Screenshot is client side)

       hvremote /show


The other useful options are:
3. Find out all the command line options: hvremote /help or hvremote /?
and a couple of client side options:

4. Client: Add firewall exception for MMC: hvremote /mmc:enable
5. Client: Allow anonymous access to Distributed COM: hvremote /AnonDCOM:grant