Put an ON ERROR command before trying to open the table exclusively. Something like this:

LOCAL IsOpen
IsOpen = .T.
ON ERROR IsOpen = .F.
USE MyTable EXCLUSIVE
ON ERROR

IF NOT IsOpen
   MessageBox ("Can't open the table. Please try again later.")
ENDIF

HTH

>In my project, 3 computers connected by LAN share one set of tables by set the tables exclusive off.
>
>The problem found when the main computer perform a table packing. Since the tables are shared and opened by the client computer. The main computer report table open error when packing proceeds. How can I solve such a problem ??