Вопрос по Upload & ActiveX

XMLHttpRequest Object
 
----------------------------------------------------------------------
The XMLHttpRequest object provides client-side protocol support for 
communication with HTTP servers.
 
Remarks
 
A client computer can use the XMLHttpRequest object 
(Microsoft.XMLHTTP) to send an arbitrary HTTP request, receive the 
response, and have the Microsoft XML Document Object Model (XMLDOM) 
parse that response. 
 
This object is integrated with MSXML to support sending the request
body directly from, and parsing the response directly into, the MSXML 
Document Object Model objects. When combined with the support for 
XSL, the XMLHttpRequest component provides an easy way to send 
structured queries to HTTP servers and efficiently display the 
results with a variety of presentations. 
 
The usual sequence is to call Open, set any custom header information 
via setRequestHeader, followed by Send, and then checking one of the 
four different response properties.
 
Example
 
The following JScript example posts an XMLDOMDocument containing order information to an .ASP page on a server and returns the result as a new XML document: 
 
<script language='JScript'>
  function PostOrder (xmldoc)
  {
     var xmlhttp = new ActiveXObject ('Microsoft.XMLHTTP');
     xmlhttp.Open('POST', 'http://myserver/orders/processorder.asp', false);
     xmlhttp.Send(xmldoc);
     return xmlhttp.responseXML;
  }
</script>
The .ASP page on the server loads the posted XML document, processes 
the order, and builds a resulting XML document:
 
<%@ language=JScript%>
<%
   Response.Expires=-1000;
   //load the posted XML document
   var doc = Server.CreateObject('Microsoft.XMLDOM');
   doc.load(Request);
   var result=Server.CreateObject('Microsoft.XMLDOM')
   //process the order and build the result document
   Response.ContentType='text/xml';
   result.save(Response);
%>