This is a Computers & Programming video tutorial where you will learn how to set up your developer computer for Silverlight applications. First you need to install some tools on your developer computer. The premier developer tool from Microsoft is Visual Studio. If you don't have a license, install Visual Web Developer Express which is free. It is installed via the web platform installer. Then you need to install the Silverlight toolkit. Go to Silverlight codeplex and you will find a complete list of tools available. The video also recommends installing Expression Blend 3. Some more developer tools are recommended in the video but, they are not that essential.