Hello,
Recheck following code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel.Description;
using Microsoft.Xrm.Sdk.Client;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Query;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
Uri organizationUri = new Uri("http://[Your crm server here]:[Port]/[Organization Name]/XRMServices/2011/Organization.svc");
Uri homeRealmUri = null;
ClientCredentials credentials = new ClientCredentials();
credentials.Windows.ClientCredential = System.Net.CredentialCache.DefaultNetworkCredentials;
OrganizationServiceProxy orgProxy = new OrganizationServiceProxy(organizationUri, homeRealmUri, credentials, null);
IOrganizationService _service = (IOrganizationService)orgProxy;
QueryExpression query = new QueryExpression("systemuser")
{
ColumnSet = new ColumnSet(new string[] { "domainname" })
};
query.Criteria.AddCondition("systemuserid", ConditionOperator.EqualUserId, null);
Entity entity = _service.RetrieveMultiple(query).Entities[0];
Console.WriteLine(entity["domainname"]);
Console.ReadLine();
}
}
}
This code is 100% created based on article -
http://nishantrana.wordpress.com/2010/11/03/sample-code-for-using-iorganizationservice-in-crm-2011/
Freelance Developer for Dynamics CRM 4.0/2011

