how to make IXMLHTTPRequest work over HTTPS, client being WinCE

Question

hi,

i am creating a client, which uploads to and dowloads from WinCE client. the code works properly for HTTP but not for HTTPS. Can any one help me about the changes that needs to be done.

Code of client on PC :

    private void btnUpload_Click(object sender, EventArgs e)
    {
        try
        {
            MSXML2.DOMDocument xmlDOM = new DOMDocumentClass();
            xmlDOM.load(txtUpload.Text);
            MSXML2.IXMLHTTPRequest x = new XMLHTTPClass();
            x.open("POST", "http://192.168.1.12/server.asp?cmd=1", false, "", "");
            x.send(xmlDOM);
            string result = x.responseText;
            if (x.status == 200)
            {
                MessageBox.Show(result);
                MessageBox.Show("upload file successfully");
            }
            else
            {
                MessageBox.Show("upload file unsuccessful");
                MessageBox.Show(x.status.ToString() + "\n" + x.statusText);
            }
        }
        catch(Exception ex)
        {
            MessageBox.Show(ex.Message + "\n" + ex.Data);
        }
    }

    private void btnDownload_Click(object sender, EventArgs e)
    {
        try
        {
            HttpWebRequest WebReq = (HttpWebRequest)WebRequest.Create("http://192.168.1.12/server.asp?cmd=2");
            WebReq.Method = "GET";
            HttpWebResponse WebResp = null;
            WebResp = (HttpWebResponse)WebReq.GetResponse();

            Stream myResponseStream = WebResp.GetResponseStream();
            StreamReader myStreamReader = new StreamReader(myResponseStream);

            string s = myStreamReader.ReadToEnd();

            MessageBox.Show(s);

            StreamWriter SW;
            SW = File.CreateText(txtDownload.Text);
            SW.WriteLine(s);
            SW.Close();

            MessageBox.Show(@"save file at" + txtDownload.Text);

            myStreamReader.Close();
            myResponseStream.Close();

            WebResp.Close();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message + "\n" + ex.Data);
        }

The client asp page that acts according to the command is :

On Error Resume Next    
Response.Expires = 0     

Dim cmd  
cmd = Request.QueryString("cmd")  

if cmd = "2" Then  
  Dim xml_dom1  
  set xml_dom1 = CreateObject("MSXML2.DOMDocument")  
  xml_dom1.load("\Windows\Config.xml")  
  Response.Write(xml_dom1.xml)  

  set xml_dom1 = nothing  

end if    

if cmd = "1" Then  
  dim xml_dom  
  set xml_dom = CreateObject("MSXML2.DOMDocument")     
  xml_dom.load(request)  
  xml_dom.save("\Windows\Config.xml")  
  set xml_dom = Nothing  
end if  

If err.number <> 0 Then  
  Response.Write(err.Description)  
  Response.Write(err.number)  
End If