Alejandro,
It sounds as if you want a tiered approach, with a VFP app handling the data and passing it to a NET front end?
If that's the case, it's not really a data repository issue at all, it's more a data transfer issue.
Are you able to tell us more about your goal? IMHO these sorts of cases are very useful, especially if you keep us informed as you go along.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1