.net clients think responses are strings

When a .net client makes a call to user_soap_login(), the response an object. But, I believe the WSDL is wrong, and .net is interpreting this as a string. I think it has something to do with the xsd1:struct type defined in the wsdl.

Raw response:

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="urn:xmethods-delayed-quotes">
  <SOAP-ENV:Body>
    <ns1:user_soap_loginResponse>
      <response_object>
        <sessid>lg8kkh8t469l783g53bh0u5tr5</sessid>
        <session_name>SESSe6a2eadc23ad84d28c62c6ddf071988d</session_name>
        <user>
...

The parsed response only contains a string containing the value of "sessid"

When code is generated through wsdl.exe, this is what comes back for the responses:

return ((string)(this.results[0]));

So it's doing exactly that...returning the first element of the result set as a string. :\