While at.exe is on your box already, you might also want to try cygwin for which there is a cron port.

It also strikes me that unless your ftp directory is very little used, a task that runs only periodically will either have to repeat often (say every minute, with corresponding startup costs) or the users will endure poor response time, assuming of course the task produces some output that someone wants in a timely fashion, which may not be true. Perhaps you would be better off with a task that was running all the time (with the corresponding loss of resources, i.e. about 10MB RAM when I do this sort of thing on my NT box) that would sleep for 15 sec. or so between checks of the directory.

I was also going to recommend Roth Consulting but I see $code or die already has, so I'll just second that!

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I'd like to be able to assign to an luser