C#

try
 {
     HttpWebRequest req = (HttpWebRequest)WebRequest.Create("http://TestWeb/Monitor");

     NetworkCredential myCred = new NetworkCredential("domain\\user", "mypass");
     CredentialCache myCredentialCache = new CredentialCache();
     myCredentialCache.Add(new Uri("http://TestWeb/Monitor"), "NTLM", myCred);
     req.Credentials = myCredentialCache;

     req.ContentType = "text/xml";
     req.Method = "GET";
     req.Accept = "text/xml";

     WebResponse resp = req.GetResponse();
     StreamReader sr = new StreamReader(resp.GetResponseStream());
     Console.Write(sr.ReadToEnd()); //Just output XML response
 }
 catch (Exception ex)
 {
     Console.WriteLine(ex.ToString());
 }