WallpaperControl is a very light-weight tool. It is written in C#, a .NET programming language by Microsoft.
As main technology we use the .NET Framework. Developers as well as end-users must have it on their computer to develop or run it. This enables us to use no further libraries for WallpaperControl which results in good performance while every .NET computer can run the application easily. This way we also achieve a high level of reliability.
The user interface makes use of Windows Forms, which is part of the .NET Framework. Thus WallpaperControl integrates into the Windows look and feel seamlessly.