I had originally given this app one star, and posted a review that said not to buy it since the helper software that has to be installed on your computer did not work under Windows 7 64-bit with MS PowerPoint 2010. After playing around with it for an hour, I was able to get it to work but there are a couple of things remember: 1. The presentation that you want to open must be in the "My Documents" folder, or it just will not work. No error message is displayed; instead PowerPoint will simply refuse to load. If you are trying to load a presentation from the desktop, it will not work since it must be in either the "My Documents" folder or a sub-folder off of My Documents. 2. Despite the icon appearing with a shield, do not give the helper software on the PC admin rights since it does not need them to operate properly and it may impare the softwares ability to connect up with MS PowerPoint.