QM-IDI Interface and SAP .NET Connector

I'm an Independent Software Vendor just getting started developing a VB.NET app using SAP .NET Connector to integrate with SAP R/3 via the QM-IDI interface. Question: How do I use the QM-IDI RFC Function Modules (e.g., QIRF_SEND_INSP_REQUIREMENTS) and tables (e.g., QAILS)? How do I connect? I see some RFC-related methods in the SAP.Connector namespace, but I don't see anything relating to QM-IDI Function Modules. Please point me to some sample code that uses the QM-IDI interface from a VB.NET app using the .NET Connector.

Thanks,

Ed Culnane