I'm not sure that I understand what your complaint is...
Is it:
1) the system's clock is slowing by 15-30 minutes over 24 hours because of your application? OR
2) the rest of the system slows to a crawl (or stops) WHILE your application processes? OR
3) both of the above? OR
4) something else?

You might want to look at a combination of DoEvents/AutoYield, and possibly restricting the application's RAM usage (SYS3050).

What is machine's RAM size?
Is this on a network?
- If so, what network system?... how many other terminals?
What ELSE are you trying to run on the machine at the same time?


>Hi,
>
>I observed that my application when processing data like seeking and
>updating or updating will 'halt' my whole system as seem on the Win9x
>system monitor program, it is actually using up all my processor time
>and other program seem to halt too until my application completed
>the processing. Hence, when my application is running 24x7 day,
>it will cause my system timing to slow down by 15 - 30 minutes.
>
>What is wrong, why normal processing of data will had this effect.
>Is there any way to improve this problem.
>
>
>
>Thank you