How to view all startup applications and services

In Ubuntu, the Startup Applications application can be invoked from the Dash to view, disable, enable or remove startup applications. It can be started from the shell by the confusing command: gnome-session-properties. However, this application does not actually show all the applications and background services that are invoked when you login to a new desktop session.

There is a global directory that holds other startup applications and services: /etc/xdg/autostart. The .desktop files here are also started on login to a desktop. If you would like the entries here to appear in Startup Applications, then edit the files and change their NoDisplay=true entry to NoDisplay=false. Once they appear in Startup Applications, it is easy to enable, disable or remove them.

Tried with: gnome-session-bin 3.9.90 and Ubuntu 14.04