WinOLS is an application that is written specifically for changing the contents of ECU memory. It makes it easy to search and find maps, which can then be named and viewed in different ways, as well as modified. Various map editing functions are available to modify the data. All data and maps are stored in project files. These project files store all the information obtained during the processing of a given controller. Other information can be added such as customer name, vehicle number and image files.