>I think that you need Web Services Enhancements (WSE) 1.0 SP1 for Microsoft .NET to interact with the same version of SOAP that Toolkit 3 supports for us in the COM world.
>
>You can download it from:
>http://www.microsoft.com/downloads/details.aspx?FamilyId=06255A94-2635-4D29-A90C-28B282993A41&displaylang=en
>
>I didn't tried it, yet. If you or someone else maek this work, please tell me.

I installed it, restarted the development environment and retried. It's still the same. The .NET environment is not capable of making use of the Soap Client 3.0 functionalities. I really don't know what to try at this point.