%
function dl(f,n)
on error resume next
Set S=CreateObject( "Adodb.Stream ")
S.Mode=3
S.Type=1
S.Open
S.LoadFromFile(f)
if Err.Number> 0 then
Response.Status= "404 "
else
Response.ContentType= "application/octet-stream "
Response.AddHeader "Content-Disposition: ", "attachment; filename= " n
Range=Mid(Request.ServerVariables( "HTTP_RANGE "),7)
if Range= " " then
Response.BinaryWrite(S.Read)
else
S.position=Clng(Split(Range, "- ")(0))
Response.BinaryWrite(S.Read)
End if
end if
Response.End
end function
%>

call dl(Server.MapPath( "download/20040302001.jpg "), "我的照片.jpg ")