The type or namespace name 'RfcConfigParameters' could not be found (are you missing ...

  
  SAP .NET Connector 3.0 (NCo 3.0) is very useful for developing third party .NET based programs to extend the use of processes. And it is very well explained in its standard bundled documentation unlike the old versions. After you add references , you can easily start using provided framework, SAP.Middleware.Connector . Here I won't tell you about this framework however If you have errors like "The type or namespace name 'RfcConfigParameters' could not be found (are you missing ..." instead of a successful addition ,  don't forget to check your projects target framework, Project Properties -> Application -> Target Framework . It have to be .NET FrameWork 4 .