Sorry, the DOG ate my whitespaces:

knoppix@Microknoppix:/etc/X11/Xsession.d$ ls -a
.................................................. ............75dbus_dbus-launch
.................................................. ............80im-switch
20x11-common_process-args....................90consolekit
30x11-common_xresources......................90gpg-agent
40x11-common_xsessionrc.......................90x11-common_ssh-agent
45knoppix......................................... ......98vboxadd-xclient
50x11-common_determine-startup...........99x11-common_start
52libcanberra-gtk-module_add-to-gtk-modules