The company, Midroc Electro, wants to examine the new possibilities for developing a graphical user interface in .NET. The user interface shall be used to administer a database. Our task has been to create an application prototype in accordance to the development model used by Midroc Electro. The goal for this prototype was to design its user interface so that it would offer an improvement in usability to an existing application. Because the .NET-platform offers new technologies for creating user interfaces and for client distribution, Midroc Electro wanted an initial study to be made, investigating the new possibilities. This study motivates the use of a specific technology in our prototype. Parts of this study are included in this report. The result of our work is an application prototype with a user interface which we feel gives a good overview of the database, and which has the potential to increase the number of feeds of database entries per minute compared to the user interface of the existing application.