It has been a long time … WPF applications do not start immediately. When an application is being loaded, there’s a delay while the CLR initializes the .NET environment and then starts the application. Splash screens are typically used to notify the user that the application is in the process of loading. The easiest way to add a splash screen to your WPF application is to have Visual Studio 2008 SP1 or later and to follow these steps: 1. Add an image file to your project. (you can use the BMP, GIF...