>Hi,
>
>It seem like the ISEXCLUSIVE function is causing the message.
>When you refer to low-level function, could you show me how to
>do that
>

lnHandle = fopen('backup.dbf',12)
if m.lnHandle > 0 && File could be used exclusive
   fclose(m.lnHandle)
   ...
endif

There is a slight chance of failing, but the possibility is too small to make it into consideration...