I used it when I bought a new computer and couldn't transfer my Streets N Trips to the new one. Called Microsoft, gave their tech control and he set everything up just fine. Now if you are talking about being able to control one of your own computers remotely, I use TeamViewer. It is free for non-commercial use and works great. Speed of operation depends upon your internet connection but the screen you see is the screen from the remote computer. You have full control of the remote.