I've a similar application written in VFP6 that runs 24/7 under windows NT4. The main form is a Top-level form with a timer. Timer triggers processing every nn seconds. I don't have any problem with it.

>Hi,
>
>Just like to get some pointer and ideal on a simple design issue.
>
>When my application are required to run 24x7 days a week without
>stop like monitoring some task/files in Win environment.
>
>What is the best way to go about do it, do I had to use
>a timer on the form. Please kindly advise me on this issue
>as my old application converted from DOS clipper using VFP
>Doevent() function occassionally is giving me problem.
>
>I might need to recode the old application to improve on this
>area.
>
>Thank you.