How to delete objects by using WebDAV in Visual C# on a computer that is running Exchange 2000 Server

using System;
using System.Net;
using System.IO;                   

namespace WebDavNET
{
    /// <summary>
    /// Summary description for Class1.
    /// </summary>
    class Class1
    {
        static void Main(string[] args)
        {
            try 
            {
                // TODO: Replace with the URL of an object in Exchange 2000.
                string sUri = "http://ExchServer/Exchange/Administrator/Inbox/NewApptFolder";

                System.Uri myUri = new System.Uri(sUri);
                HttpWebRequest HttpWRequest = (HttpWebRequest)WebRequest.Create(myUri);

                // Set the credentials.
                // TODO: Replace with the appropriate user credential.
                NetworkCredential myCred = new NetworkCredential(@"DomainName\UserName", "UserPassword");
                CredentialCache myCredentialCache = new CredentialCache();
                myCredentialCache.Add(myUri, "Basic", myCred);
                HttpWRequest.Credentials = myCredentialCache;

                // Set the headers.
                HttpWRequest.KeepAlive = false;
                HttpWRequest.Headers.Set("Pragma", "no-cache");

                //Set the request timeout to 5 minutes.
                HttpWRequest.Timeout = 300000;
                // set the request method
                HttpWRequest.Method = "DELETE";

                // Send the request and get the response.
                HttpWebResponse HttpWResponse = (HttpWebResponse)HttpWRequest.GetResponse();

                // Get the Status code.
                int iStatCode =  (int)HttpWResponse.StatusCode;
                string sStatus = iStatCode.ToString();
                Console.WriteLine("Status Code: {0}", sStatus);
                // Get the request headers
                string sReqHeaders = HttpWRequest.Headers.ToString();
                Console.WriteLine(sReqHeaders);

                // Read the response stream.
                Stream strm = HttpWResponse.GetResponseStream();
                StreamReader sr = new StreamReader(strm);
                string sText = sr.ReadToEnd();
                Console.WriteLine("Response: {0}", sText);

                // Close the stream.
                strm.Close();

                // Clean up
                myCred = null;
                myCredentialCache = null;
                HttpWRequest = null;
                HttpWResponse = null;
                strm = null;
                sr = null;
            }
            catch (Exception e)
            {
                Console.WriteLine("{0} Exception caught.", e);
            }
        }
    }

}