You must have the database open exclusively and you need to have a freshly cleaned up the database before the RI builder will run. I thought it would still be avaiable on the menu (not greyed out) but would pop up a message box indicating what was wrong though.

>I did a validate data recover and still no ref integrity
>
>
>>Both of tables must have indexes. One of them tables must have a Primary index. Get the index name from table window and drag it to second table index name thus You build a relation. Duoble Click on Relation & You get "Edit relationship" window. On it there is a Referencial Integrity Button.
>>
>>>>Put some tables in DBC,
>>>
>>>Just did
>>>
>>> Create relations between them
>>>
>>>Thats what does not work!!!!!!!!!!!!!
>>>
>>>& make sure if You are opened the DBC exclusive
>>>
>>>It is
>>>
>>>
>>>PS I can clean up the database since it is open exclusively
>>>PS vfp8sp1, xpsp2
>>>
>>>
>>>>
>>>>>I am creating a new dbc (first time in years!, and once over 60 one forgets everything)
>>>>>the referential integrity builder is greyed out. I don't remember what to do to be able to create ref. Integrity
>>>>>
>>>>>Thanks
>>>>>
>>>>>Peter