webservices

The webservice is implemented with the use of NuSOAP, a SOAP library. I want to consume in .net.

Please see the attached image.

what the problem with the add reference?

I don't see any methods, the browser shows me the following when I hit enter after typing the URL:

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Body>
<SOAP-ENV:Fault>
<faultcode xsi:type="xsd:string">SOAP-ENV:Client</faultcode>
<faultactor xsi:type="xsd:string"/>
<faultstring xsi:type="xsd:string">
Operation '' is not defined in the WSDL for this service
</faultstring>
<detail xsi:type="xsd:string"/>
</SOAP-ENV:Fault>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>

can I consume this in .net? I think when it is consumed in php it makes use of require_once('nusoap.php');.
webservice.jpg