login de usuario con BD

[TCL_ZIP]

Tengo un sistema de log-in con el siguiente codigo:

Código:

<%@LANGUAGE="VBSCRIPT"%>
<!--#include file="Connections/feaps.asp" -->
<%
' *** Validate request to log in to this site.
MM_LoginAction = Request.ServerVariables("URL")
If Request.QueryString<>"" Then MM_LoginAction = MM_LoginAction + "?" + Server.HTMLEncode(Request.QueryString)
MM_valUsername=CStr(Request.Form("usuario"))
If MM_valUsername <> "" Then
  MM_fldUserAuthorization=""
  MM_redirectLoginSuccess="restringido_mostrar.asp"
  MM_redirectLoginFailed="restringido_login.asp"
  MM_flag="ADODB.Recordset"
  set MM_rsUser = Server.CreateObject(MM_flag)
  MM_rsUser.ActiveConnection = MM_feaps_STRING
  MM_rsUser.Source = "SELECT Usuario, Contrasena"
  If MM_fldUserAuthorization <> "" Then MM_rsUser.Source = MM_rsUser.Source & "," & MM_fldUserAuthorization
  MM_rsUser.Source = MM_rsUser.Source & " FROM usuarios WHERE Usuario='" & Replace(MM_valUsername,"'","''") &"' AND Contrasena='" & Replace(Request.Form("clave"),"'","''") & "'"
  MM_rsUser.CursorType = 0
  MM_rsUser.CursorLocation = 2
  MM_rsUser.LockType = 3
  MM_rsUser.Open
  If Not MM_rsUser.EOF Or Not MM_rsUser.BOF Then 
    ' username and password match - this is a valid user
    Session("MM_Username") = MM_valUsername
    If (MM_fldUserAuthorization <> "") Then
      Session("MM_UserAuthorization") = CStr(MM_rsUser.Fields.Item(MM_fldUserAuthorization).Value)
    Else
      Session("MM_UserAuthorization") = ""
    End If
    if CStr(Request.QueryString("accessdenied")) <> "" And false Then
      MM_redirectLoginSuccess = Request.QueryString("accessdenied")
    End If
    MM_rsUser.Close
    Response.Redirect(MM_redirectLoginSuccess)
  End If
  MM_rsUser.Close
  Response.Redirect(MM_redirectLoginFailed)
End If
%>

I cuando hago log-in me da el siguiente error:

Provider error '80004005'

Error no especificado

/feaps/restringido_login.asp, línea 14

La linea 14 es la siguiente:
MM_rsUser.ActiveConnection = MM_feaps_STRING

porque puede ser?

Gracias por adelantado

[Cbas]

Y la variable MM_feaps_STRING qué tiene?