在ie中点开图片或文档的链接里，IE会自动打开它,有时候这种功能并不是我们所需的,虽然我们可以提醒用户用鼠标右键–>”目标另存为….”命令来下载文档或图片,但这样毕竟不太方便,本文描述了利用FSO及Stream方法实现IE直接下载文档. (来源:mtc 's blog)

<%@ language=vbscript codepage=65001%>

<%
'Filename must be input
if Request("Filename")="" then
response.write "

Error:

Filename is empty!

”
else
call downloadFile(replace(replace(Request(”Filename”),”\”,”"),”/”,”"))

Function downloadFile(strFile)
' make sure you are on the latest MDAC version for this to work
' get full path of specified file
strFilename = server.MapPath(strFile)

' clear the buffer
Response.Buffer = True
Response.Clear

' create stream
Set s = Server.CreateObject(”ADODB.Stream”)
s.Open

' Set as binary
s.Type = 1

' load in the file
on error resume next

' check the file exists
Set fso = Server.CreateObject(”Scripting.FileSystemObject”)
if not fso.FileExists(strFilename) then
Response.Write(”

Error:

“&strFilename&” does not exists!

“)
Response.End
end if

' get length of file
Set f = fso.GetFile(strFilename)
intFilelength = f.size

s.LoadFromFile(strFilename)
if err then
Response.Write(”

Error:

Unknown Error!

“)
Response.End
end if

' send the headers to the users Browse
Response.AddHeader “Content-Disposition”,”attachment; filename=”&f.name
Response.AddHeader “Content-Length”,intFilelength
Response.CharSet = “UTF-8″
Response.ContentType = “application/octet-stream”

' output the file to the browser
Response.BinaryWrite s.Read
Response.Flush

' tidy up
s.Close
Set s = Nothing

End Function
end if
%>