When you launch a program, such as Microsoft Word for example, the program runs in full screen on your iPad. If there's another app you want to use that's not shown in the launcher, simply hit the plus sign in the upper right and scroll through the list of your desktop computer apps until you find it. Once connected to a computer, Parallels Access shows its launcher with a select group of Applified apps from the programs on your desktop computer. When you launch Parallels Access, you can choose which computer you want to control. I tried it with both Mac and Windows systems and it worked smoothly on both. Once registered and signed in, you can simply launch the app on your iPad, then choose which connected desktop you want to work with. During the trial you can purchase a one-year subscription through the app to continue using Parallels Access. You get a 14-day free trial of the Mac version, and the Windows version will be a free public beta at launch (later going out of beta and becoming a 14-day free trial). Then click on the link to go to the Parallels Web site where you can download the Parallels Access agent for your Mac or PC. To get started, go to the App Store and download the Parallels Access app for iPad for free. Still, it seems like the pricing is a bit steep for access to each additional computer. On the other hand, it may be worth the money if you spend a lot of time away from your desktop and need to show something to a client or edit documents on programs that are only available for desktop. But the problem is that it's $79.99 for each computer you access, so if I were a paying customer, the ability to access both my Mac laptop and my Windows desktop for this review would cost $159.98 per year. It's important to note that Parallels Access is a subscription-based service that costs $79.99 per year, which you will pay for in the App Store.