Microsoft Sharepoint Authentication

sp-auth.cs

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            ClientContext clientContext = new ClientContext("http://sitename");
            CredentialCache cc = new CredentialCache();
            cc.Add(new Uri("http://sitename"), "NTLM", new NetworkCredential("User", "Password"));
            clientContext.Credentials = cc;
            clientContext.AuthenticationMode = ClientAuthenticationMode.Default;
            Web site = clientContext.Web;
            clientContext.Load(site);
            clientContext.ExecuteQuery();
            Console.WriteLine("Title: {0}", site.Title);
            Console.ReadKey();
        }
    }
}