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,
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>Just did
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> Create relations between them
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>Thats what does not work!!!!!!!!!!!!!
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>& make sure if You are opened the DBC exclusive
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>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