>>From my experience, the DBI ctSchedule and eXontrol controls are geared for tasks that are days long, not hours. I would look at using something like http://www.dbi-tech.com/Product_Page_Solutions_PIM.asp for hourly assignments.
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>I remember I've once used DBI's scheduler control for a golf course - i.e. in 15-minute slots, IIRC. If we're talking about the same control, that is; if not, then they have one that can do finer than days.

True. You can do hourly or smaller time increments w/ the DBI and eXontrols. But based on Cecil's comments, i would review the use of the PIM controls for sub-day duration scheduling. (http://www.dbi-tech.com/SolPim3Screen.htm)