Z-Cron is a free task scheduling utility for WIndows. But wait, doesn't Windows aready include a task scheduler? Yes, but it's not exactly what we'd call user friendly. And while Z-Cron might look a little intimidating at first glance, it includes a nice long list of activities that you can schedule with just a few clicks. Here are just a few of the tasks included:
- Alarm CLock
- Cleanfile - delete old files
- CopyDir - Copy a directory (great for performing daily, weekly, or monthly automated backups)
- Delete files
- Download files
- Empty trash
- Hibernate
- Log out
- Move a directory
- Switch a screensaver on or off
- Send an email
- Shutdown
- Standby
While there are a ton of tasks built into the interface, you can also create your own by selecting programs you want to name and scheduling a time for them to run.
[via LifeRocks 2.0]
While Windows has the ability to automatically schedule the execution of processes, it is quite limited with respect to handling more interesting process triggering criteria. For example, if you're looking for a way to run a specific process (defragmenting your hard drive, for example) before shutting down, 
Skobee
