如何读取一个.ini文件？

<OBJECT ID="agobjOraSession" RUNAT="Server" PROGID="OracleInProcServer.XOraSession" SCOPE="Application">
</OBJECT>
<script LANGUAGE=VBScript RUNAT=Server>
Const CONST_FL_NAME = "\GetAttributeCode.ini"
Const CONST_FL_FORREADING = 1
Const CONST_DB_SECTION = "[DB_CONNECTION]"Sub Application_OnStart
On Error Resume Next

  Dim objFs     
  Dim objTs         
  Dim strLineData     
  Dim flgSection     
  Dim strTempData 

  Application("Service") = ""
  Application("User") = ""
  strLineData = "" 
  strTempData = ""
  flgSection = False


  Set objFs = Server.CreateObject ("Scripting.FileSystemObject")
  Set objTs = objFs.OpenTextFile(Server.MapPath(CONST_FL_NAME),CONST_FL_FORREADING,False)
  If Err.Number <> 0 Then
  　　Err.Clear
    　Set objTs = Nothing
  　　Set objFs = Nothing
  　　Exit Sub
  End If

While Not objTs.AtEndOfStream
    strLineData = objTs.ReadLine
  　If Trim(strLineData) <> "" Then
        If flgSection = True And Mid(strLineData,1,1) = "[" And _
      　　Mid(strLineData,Len(strLineData),1) = "]" Then
    　　　objTs.Close
        　Set objTs = Nothing
    　　　Set objFs = Nothing
    　　　Exit Sub
    　　End If

    　　If strLineData = CONST_DB_SECTION Then
    　　　flgSection = True
  　　 End If

If flgSection = True Then
      If Mid(strLineData,1,7) = "Service" Then
      　　strTempData = Trim(Mid(strLineData,8,Len(strLineData)-7))
      　　If Mid(strTempData,1,1) = "=" Then
      　　　　strTempData = Trim(Mid(strTempData,2,Len(strTempData)-1))
      　　　　Application.Lock
      　　　　 Application("Service") = Mid(strTempData,2,Len(strTempData)-2)
      　　　　Application.UnLock
    　　 End If
    End If
    If Mid(strLineData,1,4) = "User" Then
      　　strTempData = Trim(Mid(strLineData,5,Len(strLineData)-4))
      　　If Mid(strTempData,1,1) = "=" Then
      　　strTempData = Trim(Mid(strTempData,2,Len(strTempData)-1))
      　　Application.Lock
      　　Application("User") = Mid(strTempData,2,Len(strTempData)-2)
      　　Application.UnLock
      End If
End If
End If
End If
Wend
objTs.Close
Set objTs = Nothing
Set objFs = Nothing
End Sub
</script>