Microsoft OLE DB Provider for ODBC Drivers error '80004005'

[Microsoft][ODBC Microsoft Access Driver] The Microsoft Jet database engine cannot open the file '(unknown)'. It is already opened exclusively by another user, or you need permission to view its data.

      You can avoid the error - ASP and ActiveX supports two ways to open DSN-less connection to MDB file (or connection to MDB file from another computer).
      1. DAO database (only for small load)

  Dim File, Conn, RS
  Const ReadOnly = False
  File = "\\server\share\file.mdb"
  Set Conn = CreateObject("DAO.DBEngine.35").Workspaces(0).OpenDatabase(File,,ReadOnly)
  Set RS = Conn.OpenRecordset(SQL)

  Dim Conn, RS
  Set Conn = CreateObject("ADODB.Connection")
  Conn.Provider = "Microsoft.Jet.OLEDB.4.0"
  Conn.Open "\\server\share\file.mdb"
  Set RS = Conn.Execute(SQL)

    'http://www.psacake.com
    Set UM = CreateObject("UserManager.Server")
    UM.LogonUser "Login with the rights", "Password", "Domain"
...
open database
...
    UM.RevertToSelf