--help

--help		Display the list of valid options
--version		Display product information
--unattendedmodeui	<unattendedmodeui>	Unattended Mode UI Default: none Allowed: none minimal minimalWithDialogs
--optionfile	<optionfile>	Installation option file Default:
--debuglevel	<debuglevel>	Debug information level of verbosity Default: 2 Allowed: 0 1 2 3 4
--mode	<mode>	Installation mode Default: qt Allowed: qt win32 unattended
--debugtrace	<debugtrace>	Debug filename Default:
--installer-language	<installer-language>	Language selection Default: en Allowed: sq ar es_AR az eu pt_BR bg ca hr cs da nl en et fi fr de el he hu id it ja kk ko lv lt no fa pl pt ro ru sr zh_CN sk sl es sv th zh_TW tr tk va vi cy
--prefix	<prefix>	Installation Directory Default: *unknown variable platform_install_directory*/NewTek/LightWave_2019.0.0
--expand_python_PySide	<expand_python_PySide>	PySide 1.2.4 Default: 1
--expand_python_pywin32	<expand_python_pywin32>	pywin32 2.19 Default: 1
--expand_python_WinPDB	<expand_python_WinPDB>	WinPDB 1.4.8 Default: 1
--expand_python_MySQLdb	<expand_python_MySQLdb>	MySQLdb 1.2.5 Default: 1
--expand_python_Nose	<expand_python_Nose>	Nose 1.3.8 Default: 1
--expand_python_NumPy	<expand_python_NumPy>	NumPy 1.9.2 Default: 1
--expand_python_runtime	<expand_python_runtime>	Expand Python Runtime Default: 1
--register_lws	<register_lws>	LightWave Scene (.lws) Default: 1
--register_lwo	<register_lwo>	LightWave Object (.lwo) Default: 1
--register_extensions	<register_extensions>	Register File Extensions Default: 1
--node_advanced	<node_advanced>	Would you like to configure advanced options for the Network Render Controller Service? Default: 0
--node_operation_type	<node_operation_type>	Select the NRC Service operation type Default: task_tray Allowed: task_tray service
--node_account_type	<node_account_type>	Select the NRC Service account Default: user Allowed: user network system
--nrc_account_name	<nrc_account_name>	Account Name* Default: .\<username>
--nrc_account_pass	<nrc_account_pass>	Account Password* Default:
--logoutput	<logoutput>	Output Destination Default: console Allowed: console file
--loglevel	<loglevel>	Logging Level Default: warn Allowed: info warn error
--logfilename	<logfilename>	Log file Default:
--fallbackport	<fallbackport>	Base fallback port Default: 29572
--nodeid	<nodeid>	Network Render Controller Service Identifier Default: <Machine_Name> NRC Service
--Setup	<Setup>	Setup Type Default: Typical Allowed: Typical Screamernet Custom

The command line sequence:

LightWave_2019.0.0_Win64_installer.exe --mode unattended --prefix <install location> --node_operation_type service --Setup Screamernet --node_account_type network --nrc_account_name "NT AUTHORITY\NetworkService" --nrc_account_pass unused

This code block installs LightWave silently in "Render Node" mode, and sets the NRC Service to automatically start the Windows service on boot.