CRM 4.0 - Acceder al crm desde fuera sin usar webservice

Inclusión de la función de conexión

private CrmService GetCrmService(string organizationName) {
            // Setup the Authentication Token
            CrmAuthenticationToken token = new CrmAuthenticationToken();
            token.OrganizationName = organizationName;
            CrmService crmService = new CrmService();
            crmService.Credentials = System.Net.CredentialCache.DefaultCredentials;
            crmService.CrmAuthenticationTokenValue = token;
            return crmService;
        }

En el programa principal se conecta

     #region Proceso de conexión

            crmService = GetCrmService("organizacion");
            crmService.Credentials = new System.Net.NetworkCredential("usuario", "pass", "domain");
            crmService.Url = "http://127.0.0.1/MSCrmServices/2007/CrmService.asmx";

            #endregion