The program makes available information of the official topographical maps from the entire territory of the Federal Republic of Germany in various graphic opinions and executes different coordinate transformations and investigations. Maps can be found through the complaint of place names, community keys, coordinates, map names or map numbers. Or they can be selected from overview graphics. The program participates laid out for the directly complaint and for the treatment from files to the data investigation. The program participates network capable. In the area of the planning and implementation of economic and scientific projects, topographical records frequently come to the application. The program TOPOWIN has been developed under participation of many regional surveying authorities into the investigation of topographical maps. The program participates an useful and versatile tool for engineer offices, planning offices and users of topographical maps. The topographical maps of different standards, required for a project, can be determined through the complaint of known parameters or through the direct selection from overview graphics and from sorted lists. By the investigation of topographical records on the basis of known places, a data base stands with approximately 62.000 places and residential places to the disposal.