Using CRM 2011 Service to Create Record from Code C# - IOrganizationService

// sample to test the method   

private void CreateAccount(string AccountName)

    {

        IOrganizationService _service = GetCRMService("http://<ServerName>:<PortNumber>", "<UserName>", "<Password>", "<Domain>");

        try

        {

            Entity account = new Entity("account");

            account["name"] = AccountName;

            _service.Create(account);

        }

        catch (Exception ex)

        {

            throw;

        }

    }

// GetCRMService   

    public static IOrganizationService GetCRMService(string ServerURL, string UserName, string Password, string DomainName)

    {

        ClientCredentials credentials = new ClientCredentials();

        credentials.Windows.ClientCredential = new System.Net.NetworkCredential(UserName, Password, DomainName);

        Uri organizationUri = new Uri(ServerURL + "/<OrgName>/XRMServices/2011/Organization.svc");

        Uri homeRealmUri = null;

        OrganizationServiceProxy orgService = new OrganizationServiceProxy(organizationUri, homeRealmUri, credentials, null);

        IOrganizationService _service = (IOrganizationService)orgService;

        return _service;

    }