i wrote a .asp file to send the signal to client realize that "this file need to be download".
Code ASP:
<%
 
	result = "001459010020"
	sitem = "M"
	if result <> "" then
 
		set data = Server.createObject("Scripting.Dictionary")
 
		if sitem = "M" then
			url = "http://192.168.1.3:80/StbData/ADMovie/ADMovie2.xml"
		end if
 
		set xml = Server.CreateObject("Msxml2.ServerXMLHTTP.3.0")
		xml.Open "GET", url, false
		xml.setRequestHeader "Content-Type", "application/x-www-form-urlencoded"
		xml.send
 
		res1 = xml.status
		res = xml.responsetext
		'response.Write res
 
	If res1 = 200 Then
			Set responseStrm = CreateObject("ADODB.Stream") 
			responseStrm.Open	'Open the stream data To the object
			responseStrm.Position = 0
			responseStrm.Type = 1	'binary data
			responseStrm.Write xml.responseBody
			responseStrm.Position = 0
			responseStrm.Type = 2	'Default. Text data
			responseStrm.Charset = "UTF-8"	'Specify charset For the source text (unicode) data.
			Session.CodePage = 65001
			resultStr = responseStrm.ReadText	'Open the stream And get binary data from the object
			Response.Write resultStr  
			responseStrm.close
			Set responseStrm = Nothing
		End If
		set xml = nothing
 
	end if
 
	set result = nothing	
 
 
%>


what i need now how client to relize signal and download this file "ADMovie2.xml"

i think it's written by C++, so anybody help me?? i'm a new bie......

thank you so much!