Hello, I cannot get exec(), system() or passthru() to run an extenal program. >From the command line it runs perfectly: [root@hnick html]# /var/www/html/myprog -E 123456789098.dat sample1.txt sample1.new (no output, it just creates the file .new) Here is the php I've created, fairly simple: <?php exec("/var/www/html/myprog -E 123456789098.dat sample1.txt sample1.new"); ?> I've tried using full paths as well >From other threats I've double-checked this: - safe mode is disabled - the values for max_execution_time and memory_limit are large enough for this simple program. - permissions are correct for all files involved: any user can run the program ( rwxr-xr-x ) any user can read input files apache is the owner of all files involved I'm getting frustrated, Any help will be deeply appreciated Henry -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php