+<?php
+ if(file_exists($path_to_root.'/config.php')) {
+?><div style="width: 700px; padding: 10px; margin-bottom: 5px; border: 1px solid #FF0000; background-color: #FFDBDB;"><b>Error:</b> Seems you have FrontAccounting application already installed.<BR>
+After logging as an admin to first installed company you can:
+<ul>
+<li> Add more companies using Add/Update Companies under Setup tab;</li>
+<li> Upgrade FA version using Upgrade Software under Setup tab.</li>
+</ul></div>
+<?php exit; } ?>