RebootIT 

There are so many memory leaks caused by applications running, terminiating, opening and closing files causing your system to become unstable through time. With RebootIT, you can refresh your systems memeory and cache on a schedule.
mailsweeper smtp directory file queue monitor scan email alert notify log run execute

Directory Watch 

A Server Side application to monitor queues. Perform actions based on a number of files in a directory. Restart services, run programs, send email notifications, reboot. Automate the monitoring and recovery of your application/print/file server.
mailsweeper smtp directory file queue monitor scan email alert notify log run execute