Little snitch is an application i installed and does not show up in startup items in system preferences, however the application always starts up whenever the system starts, how does it do this, is there some other place where applications can register themselves so they launch on startup.
EDIT: BELONGS ON SUPERUSER.
A ‘Daemon’ or a ‘Launch Agent’ can do that.
Have a look in /Library/LaunchAgent or /Library/LaunchDaemon
There will be quite a few processes that launch without being in the Startup Items section of System Preferences.