>>>Table is open in both datasession.
>>>
>>>What I don't understand is that I get the message without any delay, it does not try for 100 seconds as I asked with set reprocess to 100 seconds.
>>
>>Using the same VFP application session, I can duplicate your observations. However, if I open 2 instances of VFP, reprocess works correctly. I don't know if this is a bug or by design. The following code will reproduce your observations:

>>oSession = newobject('session')
>>set datasession to oSession.DataSessionID
>>set exclusive off
>>set multilocks on
>>set reprocess to 10 seconds
>>use some_table
>>flock()   && file is locked
>>
>>set datasession to 1  && default DS
>>set exclusive off
>>set multilocks on
>>set reprocess to 10 seconds
>>use some_table
>>? flock()  && FALSE is immediately returned

>
>Interesting note to your code, Mark.
>
>If from the command window, after the above code has been run, you type "FLOCK()" it returns .T.
>
>It never did in code, even if I waited (=INKEY(.5)) or did multiple FLOCK() commands. Only from the command window.
>
>What's up with that???????

Unless oSession is public, it goes out of scope as soon as the prg runs.