There are two things that you need to check in order to ensure interoperability with a .NET Web Service: firstly you need to provide the correct value for the uri method - this is used as the namespace for the XML payload of the SOAP request. If the namespace is not being explicitly being set in the [WebService] attribute in your c# code then this will have the value of http://tempuri.org/. Secondly you need to be sending the form of SOAPAction header that the .NET web service is expecting. You can generally achieve this by adding:

   ->on_action( sub { join "", @_ } )
[download]

after the proxy() line.

/J\