Ia m aun able to connect the MS access through Wamps5 1.7.3

Here is the code

Code:
<?php
// Two versions of Microsoft Office.  Choose one.
//$db = 'C:\EmployeeDetails.mdb';
$db = 'C:\wamp\www\empdetails\EmployeeDetails.mdb';
$conn = new COM('ADODB.Connection') or exit('Cannot start ADO.');


// Two ways to connect. Choose one.
//$conn->Open("dns=Microsoft.Jet.OLEDB.4.0;
...