Setting up PHP COM object to interact with powerpoint

[etully]

I need to write a PHP script that can open and manipulate Powerpoint PPT files

I wrote a simple 5 line test script by following the instructions here:
http://www.php.net/manual/en/class.com.php

The very first line is supposed to instantiate the COM object with a connection to Powerpoint.

$app = new COM("PowerPoint.application") or die("Unable to instantiate PowerPoint");

That lines causes an error.

I opened a ticket with the company who is hosting this Windows server. They said that the problem is that they don't have the right DLL installed on their server. Unfortunately, they don't know what to install. They said that they would be happy to do it if I tell them what I need them to do.

Does anyone know what needs to happen to make this work?

Thanks for any help.