<p>You need two things to be able to use the PowerPoint integration:</p>
Windows
Microsoft PowerPoint XP and higher
<p>If you want to show presentations, but don't have PowerPoint installed, on Windows you can also use PowerPoint Viewer (which you can download for free) or OpenOffice.org.</p>
<p>Unfortunately at this stage we have no developers on OS X, so we have been unable to take a good look at how to do things on that platform.</p>
<p>Not only that, even if we wanted to use OpenOffice.org, OpenOffice.org for OS X does not support the interface OpenLP needs to use to control it.</p>