Well, depending in what you need to do, how often etc, you have the AT command (type 'at /?' at a cmd line) and the task scheduler in w2k. These are not as versatile and easy to use as cron, specifically it is harder to for instance get them to do something every hour and suchlike, so those depend lots on your needs. I'd start there though, and see if it is enough.

Going google returns a lot of possible alternatives, such as this, this and this (and tons more). I haven't tried any of these, but have had good luck in the past with similar products/projects - if I only could remember where and under what name. :)

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It is pitch black. You are likely to be eaten by a grue.