CIM in an MVC3 app - how to instantiate ServiceSoap?

[ekkis]

I'm integrating CIM into an MVC3 app.  I've added a service reference using the development url and coded the following:

        public long x()
        {
            var u = this.User.Identity as IClaimsIdentity;
            var id = u.Claims.First(x => x.ClaimType == ClaimTypes.NameIdentifier);

            AuthorizeNet.CustomerProfileType cust = new AuthorizeNet.CustomerProfileType();
            cust.merchantCustomerId = id.Value;

            AuthorizeNet.MerchantAuthenticationType merch = new AuthorizeNet.MerchantAuthenticationType();
            merch.name = "8aFRk4663XMd";
            merch.transactionKey = "4MS675e62fQEdUXN";
            AuthorizeNet.ServiceSoap svc = new AuthorizeNet.ServiceSoap();
            AuthorizeNet.CreateCustomerProfileResponseType response = svc.CreateCustomerProfile(
                merch, cust, AuthorizeNet.ValidationModeEnum.none
            );
            return response.customerProfileId;
        }

but, of course, it doesn't work because one cannot instantiate an interface like that (.ServiceSoap is an interface).  The sample code makes a reference to a .Service - but that doesn't exist AFAICT.

so how is this supposed to work?

TIA - e! 

[ekkis]

incidentally, I did find an old post (http://community.developer.authorize.net/t5/Integration-and-Testing/CIM-Integration-as-Service-Refer...) with the exact problem I'm having but, alas, no solution.

[ekkis]

if there's a better solution, I'm all ears.  for now I'll be following this: http://stackoverflow.com/questions/7104192/cim-in-an-mvc3-app-how-to-instantiate-servicesoap/7104300...