Where can I find the definition of MWspRConnInfoProvider that is passed as one of the arguments of CWspTransportHandler::NewL()? This only appears in CWspTransportHandler.h in SDK 2.0 and 2.1 and no folder actually contains the actual definition. A comment in header file reads: "(in) A client API that provides RConnection info. This param is added by NOK to support MultiHoming." This argument is missing in symbian_devlib.chm bundled with SDK.