Special QNX 6.3 configuration.

I am not very experienced in QNX 6.3. I have to reconfigure QNX 6.3. After start, QNX should start some application, let’s call this application X. X works in graphic environment. It’s important that user of X cannot have permission to any other applications. I want to force a user to use just application X. User is not able to do anything else. How should I configure QNX to work in such a way?

to start an application you can use ~/.ph/phapps, the commands in here are automatically started after the user logged in into photon.

for not having any other optins have a look at shelf and perhaps pwm which is also discussed at
http://www.openqnx.com/index.php?name=PNphpBB2&file=viewtopic&t=4011
or
http://www.openqnx.com/index.php?name=PNphpBB2&file=viewtopic&t=3943

search the forum for autologin, as i expect you need to autologin a certain user at boot time.
check:
http://www.openqnx.com/index.php?name=PNphpBB2&file=viewtopic&t=3219
http://www.openqnx.com/index.php?name=PNphpBB2&file=viewtopic&t=3515