System Scheduler - System Scheduler for Windows, Free Task Scheduler Software replace Microsoft Windows Task Scheduler
Date Reminder - Date Reminder reminds you of recurring or nonrecurring events, like birthdays, bills to pay...
VisualCron - VisualCron is an automation, integration and task scheduling tool for Windows.
GoGetter - GoGetter is a task management system based on David Allen’s ever so popular Getting Things Done...
Freebyte Task Scheduler - Freebyte Task Scheduler, freeware for Windows and Linux/Wine.
todoMini - Your web based TODO list.