How to copy and move objects on a computer that is running Exchange 2000 Server by using the HttpWebRequest class and the HttpWebResponse class in Visual C#

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

namespace WebDavNET
{
  /// <summary>
  /// Summary description for Class1.
  /// </summary>
  class Class1
  {
    static void Main(string[] args)
    {
      try 
      {
        bool bMove;
        // TODO: Uncomment the following line to Move
        // bMove = true;   
        // TODO: Uncomment the following line to Copy
        // bMove = false;  

        // TODO: Replace with the source URL of an item
        String sSourceURL = "http://ExchServer/Public/Folder1/test1.eml";   
        // TODO: Replace with the destination URL of an item
        String sDestinationURL = "http://ExchServer/Public/Folder2/test2.eml";     
      
        System.Uri myUri;
        myUri = new System.Uri(sSourceURL);
        HttpWebRequest HttpWRequest;
        HttpWRequest = (HttpWebRequest)WebRequest.Create(myUri);

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

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

        //Set the request timeout to 5 minutes.
        HttpWRequest.Timeout = 300000;
        // set the request method
        if(bMove)
        {
          HttpWRequest.Method = "MOVE";
        }
        else
        {
          HttpWRequest.Method = "COPY";
        }

        // Send the request and get the response.
        HttpWebResponse HttpWResponse;
        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);
      }
    }
  }

}