Purpose CronTool is a powerful utility for 'controlling' your machine when you're not there. Based on a series of files, which can run at regular times, such as daily, weekly, monthly and yearly, as well as a custom file, you can use a flexible script language to execute commands, create zip archives and even send emails - all performed automatically at various times of day. CronTool also implements a Linux style crontab file so that you can tailor the exact time each script is run. CronTool is ideal for monitoring your system or for running automated tasks in the background or when you're away from your machine.