It seems that you're running Windows, right? Well, as far as I'm concerned, Microsoft Windows does not have a cron daemon/service. Cron is a UNIX thing that is used to run various scripts/programs periodically. If you want to run the runcronjobs.php script at specific times on Windows, I suggest that you use some kind of scheduling system. Perhaps you can use the "Windows Scheduler" solution. You need to actually execute the cronjobs script like this: "php -C runcronjobs.php"