;   INTERNET_DEFAULT_HTTP_PORT, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 1);
     HINTERNET hRequest = HttpOpenRequest(hConnect, "POST",
     _T("FormActionHere"), NULL, NULL, accept, 0, 1);
     HttpSendRequest(hRequest, hdrs, strlen(hdrs), frmdata, strlen(frmdata));
     // close any valid internet-handles

 //把sXmlMessage发送到指定的DsmpUrl地址上
            Encoding encode = System.Text.Encoding.GetEncoding("utf-8");
            byte arrB = encode.GetBytes(sXmlMessage);
            HttpWebRequest myReq = (HttpWebRequest)WebRequest.Create(DsmpUrl);
            myReq.Method = "POST" ;
            myReq.ContentType = "application/x-www-form-urlencoded";
            myReq.ContentLength = arrB.Length;
            Stream outStream = myReq.GetRequestStream();           
            outStream.Write(arrB,0,arrB.Length);
            outStream.Close();

            //接收HTTP做出的响应
            WebResponse myResp = myReq.GetResponse();
            Stream ReceiveStream = myResp.GetResponseStream();               
            StreamReader readStream = new StreamReader( ReceiveStream, encode );
            Char read = new Char[256];
            int count = readStream.Read( read, 0, 256 );
            string str = null;
            while (count > 0)
            {
                str += new String(read, 0, count);
                count = readStream.Read(read, 0, 256);
            }
            readStream.Close();
            myResp.Close();

public   static &nb