What is 'Last Session.ini' for?
It's last settings used while making last adjustments. It is by default copied to your newly made ISO so in the future when you want something to change and start all over all you need to do is import 'Last Session' from the CD/DVD into Presets page and proceed with changes from there. All your previous settings will be loaded.
For instructions on how to use nLite, click here.
For questions or issues with nLite, click here