>In case of abnormal shutdown of machine, it used to corrupt the fpt files.
To reduce data corruption, you should:
Use FLUSH after each change to a record.
Turn off write-cache on the file server.
And, of course, do regular backups.
You might also consider a C/S solution, but if it is only for data corruption, that should be "overkill".
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)