Hello All, I am not familiar enough with RPC, and what I find through MS and general WEB searches about RPC seem more superficial. Is it possible to incorporate RPC into an existing application that at present does not utilize RPC? I guess what I am getting at is this . . . Does an application need to be developed as RPC enabled from the start, i.e. the entire application needs to be RPC, or can RPC be achieved through a single added class using the IDL (MIDL) and then passing all remote calls through the RPC enabled class? Thank you in advance for any and all assistance in this matter.