>Hi Sergey -
>
>Right, so what I've done is set the packetSize on connection 0 before any "real" connections are made, thinking that would then be used for the connections made after the SQLSETPROP( ) was called. That doesn't seem to be the case.

This, and a few other SqlSetProp()s must be done in advance, before you establish a connection, simply because they are the parameters which are established between your app (as a client) and the server when the connection is made.

Saved connection is not a real connection; it's a saved definition which will be applied when that definition is used to make a real connection. The description of the connection stored in a dbc is not making this distinction, but you can guess that it's different - it stays in the dbc, unchanged, before, during and after the actual connection to a server.