>>I have found VFP timers to be unreliable when left to run in perpetuity. Instead I call my .exe from the windows scheduler every few minutes and my .exe itself shuts down after completing its checks.
>>
>>Also, instead of a timer you could just induce a delay between loops by calling the Windows API Sleep .
>
>I agree. Never tried to prove it, but I think timers tend to leak memory and over time it's a killer.

Thirded. On my last project we had a timer-based process that ran all the time. It was nothing but trouble.