>Hi,
>
>My application just act as a data posting program that detect some file
>and post them to the respective free dbf files.
>I using Dynazip to unzip and zip up the dbf files, plus using Win32API
>sleep command to pause time. However, the system often give system
>time problem. I can't feature what why, pls advise or help. Thank you
>very much

If you're not making extensive use of any kind of graphic resource, or previewing reports, I know of no other mechanism that has any kind of memory leaks. Are these machines known to run OK for days when your app is not running? Maybe the batteries are bad, or the clocks do not function correctly on their own? Can you have ANY kind of VFP app that runs for days, even if it's doing nothing?

>
>>>Hi,
>>>
>>>My application writting using vfp5a, running under Win9x
>>>after many days, give error of illegal operations and halt
>>>all my other vfp application too, resulting in a cold reboot
>>>to solve it. Plus, it also causes the whole system time
>>>to slow by half an hour. Any one encounter or face the same
>>>problem before, pls advise or comment and help me as I am
>>>in the loss of how to solve this two problems.
>>
>>Do you do any report previews? There's a memory leak in that process (still exists in VFP6/SP4, I believe).
>>
>>How about lots of changing of .ICO or .BMP pictures used on buttons, or form backgrounds? This can use up more and more resources, eventually causing Windows to slow down.