>Not overhead, but quite a bit of coding. Can you explain what is supposed to be the problem if I just set the timer, say, to 2 hours (2 * 3600 * 1000)? You mention accuracy, but doesn't the timer automatically check, at regular intervals, whether the specified time elapsed?

There shoulf be no problems. Only if another app has "run away" (is totally CPU bound) and the OS can't cut in, OR the VFP app is "hung" because of a "dropped" menu will there be a problem. In those cases, ANY Interval will fail to make a difference.