>>>>>No. The problem was that I was not closing this free table in a form that was using private datasession. So, there was no way I could "close" this table afterward. That is, once the form was released I was stuck.
>>>>>
>>>>>Hmmm. This makes no sense to me. The data environment's CloseTables() method fires before the form is released so this should not be an issue.
>>>>>
>>>>>Something else is going on here.
>>>>
>>>>I tracked the problem to the following:
>>>>If I place the line:
>>>>

>>>>use in select("MyTableAlias")
>>>>

>>>>right before I call thisform.release() (in Exit Button Click() method), then the table can be opened exclusive later in the application. If I comment this line (Use in...), the table will not open exclusively (error 3).
>>>>
>>>>One more little piece of information, in case it makes a difference.
>>>>
>>>>The "culprit" form is based on a class in a VCX file. And the form is opened with the following line:
>>>>
>>>>

>>>>DO FORM MyForm.SCX NAME oMyForm LINKED NOSHOW
>>>>

>>>>
>>>>Could the above method of opening the form be the cause of the problem?
>>>
>>>Since it's a form based, it has DE. Right click on the form in Designer and check its DE and its properties. In our MereMortals framework all forms are classes, so we do not have DE. But I believe all forms (SCX based) have DE.
>>
>>If I do that, the DE window (in design mode) is empty.
>
>That's fine. Just check the DE properties and try to put some debugging code in CloseTables method of DE through Property Sheet.

I will do that and test the results. I will let you know.
Thank you so much for your help.