Recently, from Visual FoxPro, when doing some SOAP, I faced the situation that I was receiving "No matching authorization scheme enable on connector". Later on, I found that I had to avoid using the HttpConnector30 and use HttpConnector instead. Today, I just tried the same from .NET:

      Dim serializer As New MSSOAPLib30.SoapSerializer30
      Dim Connector As MSSOAPLib30.HttpConnector30
      Dim Parser As New MSSOAPLib30.DimeParser30
      Dim composer As New MSSOAPLib30.DimeComposer30
      Dim Reader As MSSOAPLib30.SoapReader30

Again, I faced the same situation. Why do I have this message when I use the 3.0 version?