Running a batch file

Hi Professionals

I have a batch file that's runs fine.  So what I am trying to do is when a user clicks a link then that batch file runs problem is I cannot get this to work via html/php

It wont let me upload the file so here is the line of code

<td width="33%" align="left"> <a href="batchfiles/"<?php exec(CleanseChars.bat); ?>">Cleanse Characters"</a></td>

thanks in advance