lxsession lite different profiles

[b52]

hey,

how can i create and start different session profiles trough .xinitrc?
actualla im executing "exec lxsession -session compiz" and i thought that all programms in ~/.config/lxsession/compiz/autostart get started, but i just get a black screen with no apps started

whats wrong?
ps archlinux

[firmit]

http://wiki.lxde.org/en/LXSession

Add .desktop files in ~/.config/autostart. The link to the wiki also states how to make different profiles.