ScreenScroll is a small program to be used to simulate a scroll of the screen. That is, it moves all non minimized windows a specified number of Pixels or percent of the screen vertically and/or horisontally. It is also possible to move the wallpaper the same length and direction. This is usefull to help you see where you are on the virtual screen. It is also possible to use include lists to only move some windows or exclude list to leave some windows.
The program does only change two settings in the registry if you are using the move wallpaper function. If you are not using that, then the program does not add anything to the registry or or any other folder than that where the program it self is in. And because it is not constantly running it does not take up any unnecessary resources.