Hi,

Thank for the advise.
However,my application just do the following below

01) open 03 permanent dbf file in exclusive mode
02) read 01 permanent dbf file and update the records into the above 01 dbf file
03) read & update all records every 01 minute.

I had tried to open all file and minimize opening & close of files. However,
when I monitor the memory usage under NT4 workstation, the task manger will
report of memory usage increase. Is there any possiblities of memory leakage.
My application will be more unstable when run under the Win9x environment.
Please advise, thank you.





>>>My application just read and update dbf in 1 mintues intervals. Please advise me on how to solve or what to look for in solving this problem. Thank a lot.<<
>
>Hard to say. If you are just reading and updating a dbf:
>
>1.) Look at the table after the illegal operation -- Are the indexes OK.
>2.) If the dbf is part of a DBC, open the DBC exclusively and do a Validate Database command
>3.) Any divide by 0 operations possible?
>4.) Have you tried the same operation under VFP 6.0 -- I get a lot of illegal operations in vfp 5.0a
>5.) What are you updating and how?
>
>Kevin