I want to edit the startup list of Linux Mint 17 without logging in. Where does the Startup Applications program keep its list of applications?
You can easily find the location of such configuration info by making a small change to one of the application settings (make sure you can undo it if necessary) and then do:
find ~ -type f -mmin -1
Which find all files under your home directory that changed in the last minute.
You will find that the files are under
~/.config/autostart/ (for each user)