chdir '/'		or die "Can't chdir to /: $!";
open STDIN, '/dev/null' or die "Can't read /dev/null: $!";
open STDOUT, '>/dev/null' or die "Can't write to /dev/null: $!";

my $pid = fork();

if (not defined $pid) {
    print "resources not available.\n";
}
elsif ($pid == 0) {
    #this is where I launch the other executable
    system("/usr/local/bin/launch myfile &") or die("Cannot execute launch: $!\n");
exit;
}
else {
    setsid or die "Can't start a new session: $!";
    open STDERR, '>&STDOUT'	or die "Can't dup stdout: $!";
    #this is the return message
    print "Your file has been sent successfully.  You will be notified via email once it has been completed.  Thank you.";
    print end_html();
    exit;
}