I haven't done this (yet), but from what I've heard so far, you might look into ADO. ADO was designed, among other things, for passing recordsets between processes.

HTH

>Let me clarify. I am interested in writing a middle tier layer in VFP. The frontend will also be written in VFP. I am interested in splitting the app. in this manner to provide scalabilty so later on the backend database may be easily changed to a SQL Server , also the data may be accesible easily to other programs.
>My question is that from the middle tier, how to return a set of records ?