Thanks Serge.. sound like just what I want.

regards,

Gerard


>You can use TRY...ENDTRY to build such UDF. See sample code in Re: Check to see if a table on a network drive is in use Message #798413.
>
>>I would like to do the following:
>
>

>If IsThisFileUsedExclusive(MyAlias) = .T.
>>    Do Nothing
>>Else
>>    Select MyAlias
>>    Set Exclu On
>>    Pack
>>    Set Exclu Off
>>Endif
>

>>Is there any command in VFP8 which does a IsThisFileUsedExclusive ?
>>
>>Regards,
>>
>>Gerard