/etc/xdg/autostart/xfce4-settings-helper-autostart.desktop is in xfce4-settings 4.8.3-1ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | [Desktop Entry]
Version=1.0
Name=Xfce Settings Helper
Exec=xfce4-settings-helper
Terminal=false
Type=Application
StartupNotify=false
OnlyShowIn=XFCE;
|