在IE进行文档链接时,如果遇到OLE支持的文档,IE会自动调用相应程序打开它,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,但这样毕竟不太友好,本文描述了利用FSO及Stream方法实现IE直接下载文档.

<%@ language=vbscript codepage=65001%>

<%
\'Filename must be input
if Request("Filename")="" then
response.write "<h1>Error:</h1>Filename is empty!<p>"
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("<h1>Error:</h1>"&strFilename&" does not exists!<p>")
Response.End
end if

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

s.LoadFromFile(strFilename)
if err then
Response.Write("<h1>Error: </h1>Unknown Error!<p>")
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
%>