What is Remote Data Service (RDS) for ActiveX Data Objects (ADO)?

Remote Data Service (RDS) is used to transport Active Data Object Recordsets from a server to a client computer. The resulting recordset is cached on the client computer and disconnected from the server. RDS uses a subset of the ADO Object model, the ADOR.Recordset, to provide a low-overhead, high-performance way to marshal recordset data over a network or web.