Installing MSI from command line.

Hi,
So If I understand it correctly I just need to populate the "wsusoffline/client/software/msi" folder.
How do I trigger the installer to look here and install what I have in the folder.
I'd like to use it to trigger installation of a MSI with IE11 branding.
I'm not sure I have it working properly as I can see no mention of it being installed in the log.
I have read that for the GUI version you need to update the "UpdateInstaller.ini" and add the entry of your MSI.
How does this transpose to the command line version.
Thanks.
So If I understand it correctly I just need to populate the "wsusoffline/client/software/msi" folder.
How do I trigger the installer to look here and install what I have in the folder.
I'd like to use it to trigger installation of a MSI with IE11 branding.
I'm not sure I have it working properly as I can see no mention of it being installed in the log.
I have read that for the GUI version you need to update the "UpdateInstaller.ini" and add the entry of your MSI.
How does this transpose to the command line version.
Thanks.