nbregopsc -add <Name of the OpsCenter Server>
D:\Program Files\Veritas\NetBackup\bin\admincmd>nbregopsc.exe
ERROR: No options selected
Usage: nbregopsc [-help]
[-addnb <OpsCenter server name>] Registers NetBackup with the specified OpsCenter server
[-addopscenter <OpsCenter server name>] Registers the OpsCenter server with NetBackup
[-add <OpsCenter server name>] Performs both -addnb and -addopscenter
[-preferred_network <OpsCenter server IP Address>] Optional OpsCenter server IP (applicable only for -add and -addnb)