thanks for your quick reply.
Both systems have this problem, that nothing is working when trying to fork() or thread. I tried all possible functions like, fork, exec, system with &, Proc::Daemon and other things on both machines. The functions which do not create a process or thread for their own like system() are working fine, but this causes a lot of delay due to the time the called script needs. I'm working with mod_perl, that's correct. Because I thought about the different behavoiurs of Apache I tried all possibilities on both systems.
in reply to Re: Apache forbids fork() and thread()
in thread Apache forbids fork() and thread()