Keysight has reasonablely good documentation in the software help and on the web. Here is the tl;dr version.

ADS

Install with -r to create installer.properties file saving the install options.

ads_2021_update2_win_x64.exe -r installer.properties  

Install with -f to call installer.properties file and use saved install options.

ads_2021_update2_win_x64.exe –f installer.properties –i silent

Create a config folder (specify this location when running the installer with -r to set in the installer.properties file).

mkdir C:\Keysight_Config  

Set the license server variable.

setx /m ADS_LICENSE_FILE PORT@SERVER_NAME  

Genesys

Install with -r to create installer.properties file saving the install options.

genesys_2020_shp_win_x64.exe -r installer.properties  

Install with -f to call installer.properties file and use saved install options.

genesys_2020_shp_win_x64.exe –f installer.properties –i silent  

Set the license server variable.

setx /m GENESYS_LICENSE_FILE PORT@SERVER_NAME  

IC-CAP

Install with -r to create installer.properties file saving the install options.

iccap_2020_update2.0_win_x64.exe -r installer.properties 

Install with -f to call installer.properties file and use saved install options.

iccap_2020_update2.0_win_x64.exe –f installer.properties –i silent  

Create a config folder (specify this location when running the installer with -r to set in the installer.properties file).

mkdir C:\Keysight_Config  

Set the license server variable.

setx /m ICCAP_LICENSE_FILE PORT@SERVER_NAME  

Further Reading

Silent Install for ADS
https://edadocs.software.keysight.com/display/adkhaund/Silent+Installation

Silent Install for Genesys
https://edadocs.software.keysight.com/display/engdocgenesys/Genesys+2020+Installation

Silent install for IC-CAP
https://edadocs.software.keysight.com/display/iccap2010/Installing+IC-CAP+on+Windows#InstallingIC-CAPonWindows-SilentInstallationOverview