Take a look at COM helper object File #18695. It allows VFP application to process Window messages.



>Currently, I can make a BUSY waiting server!
>
>Check the dbf or somewhere file exist or more record found to do new service...
>but it is not good!
>
>Can it handle the SendMessage of Win32API call from other process?
>
>If it can, make it always sleep until this SendMessage to wake it up.