The Windows installer can be run silently – without any user interface – from the command line using the /qn MSI command line switch:
"EasyCatalog CC2018 Installer.exe" /qn
As there is no user interface the installer will install EasyCatalog plus all of the default modules. There are no command line options to change the modules that are installed, and installation will only succeed if the installer can find the Adobe InDesign application folder.!
The installer requires elevated permissions so must be run from an Administrator-level command prompt: enter ‘cmd’ in the Windows search bar and hold Ctrl+Shift when pressing the ‘enter’ key.