exec() disable enviroment

[hilbert00]

Dear all, I would like to install yourTwapperKepper on my host, but
unfortunately for security reasons exec function is disable. Is there
a workaround for that?

I had a look at the code and the only place where we really need exec
is to start the archiving processes, that must have different PIDs.

For your info, this is the list of disabled functions:
system, show_source, exec, shell_exec, proc_open, passthru,
set_time_limit, ini_restore, mysql_list_dbs, ini_alter, dl,
pfsockopen, openlog, syslog, symlink, link, chgrp, leak, popen,
escapeshellcmd, apache_child_terminate, apache_get_modules,
apache_get_version, apache_getenv, apache_note, apache_setenv,
virtual, mb_send_mail

Thanks for any help,
toto