It is not clear what level of threading support ADO provides on top of the normal ODBC driver support for the JET database engine. Does ADO provide any additional multithreading capability or does it rely entirely on the JET ODBC driver? In terms efficiency, ADO seems to add another layer to the ODBC driver (by using the OLEDB interface for ODBC), generally making it a less efficient choice.
Besides the fact that ADO is Microsoft's latest idea, are there any speed or multithreading benefits or potential benefits to sway someone to use ADO vs. normal ODBC and what are they?