>The timer you show is set to fire every half-second and to run 10 times (that's what the loop is about), then shut down. For what you're trying to do, you could just set the timer to go off after 30 minutes by setting Interval to 1800000 (30 * 60 * 1000 milliseconds). But I'm not sure I'd be comfortable doing that with a VFP timer. You might consider using the Windows scheduler instead.

I'm using the scheduler a lot, and the main trouble with it are the customers' cerberi, aka the IT security folks. They generally give you an account with some limitations, and then anything may happen - your account doesn't have the rights to run cmd.exe (used by the scheduler), or you put quotation marks around the folder where to run the exe (which you must not do, but you MUST put them around the exe if it contains spaces), or they suddenly decide that it can't have a permanent password and then it expires before anyone notices. Sure it reports that a task is not running, in the event log, buried among thousands of other entries.

This last issue, in my experience, takes about three cycles of set up, run for months, break when it expires, set up again. By that time the users finally learn how to apply pressure to the cerberi, and by then it's probably the third set of those guys too, so you get someone reasonable who knows what you're talking about.