>Hi,
> How to implement 3-tier using VFP DB in LAN?

THe same way you do with any other database. You need to put COM objects on the server.

>How to pass chunk of records back to client?

You can use either ADO or XML

>How to detect changes (buffering mode) in COM?

You can't really.

>
>Any condition need to be consideration?
>
>thank you