Avast commandline switches

Hi,
I’m trying to install avast 10 PRO to remote PC using commandline(chef, winrm … and switch /silent) and I have already got license file, so I would like to insert it during the installation, but I don’t know which commandline switches can I use. Lots of switches for previous versions don’t work and I can’t find that list for version 10. Can you help me pls ?

/licfile

one of these variants should work: /licfile:, /licfile=, /licfile

Thank you, /licfile: works.