From Polenter - Software Solutions:
Desktop-Reminder is a freeware task planner with calendar and reminder. Always during start of Windows it lists all tasks, which are urgent for that day. It can notify about tasks even months earlier. For tasks with defined time of day an according notification message with an alarm sound will be shown. There is no need to give annoying time of day for the task. However if you define time of day for the task, Desktop-Reminder can notify you with an alarm message with a sound in the range of one minute to few hours before the time comes. You don't miss your favorite TV-program and you don't bid too late on eBay.
What's new in this version:
Version 2.105 supports export to ICalendar file format (*.ics).