Requirements for developing with Silverlight
To develop the Silverlight component for a Visual Studio Tools integration that supports custom rendering, you must have several Silverlight components installed. The following is the list of the components that are required, and information about how to obtain them.
Silverlight 5 SDK
This component provides libraries and tools for developing Silverlight 5 applications. You can download this component from the following location:
https://www.microsoft.com/en-us/download/details.aspx?id=28359
Silverlight 5 Tools for Visual Studio 2010
If you are using Visual Studio 2010 to develop your Visual Studio Tools integration, you need the Silverlight 5 Tools for Visual Studio 2010. You can download this component from the following location:
https://www.microsoft.com/en-us/download/details.aspx?id=28358
Silverlight 5 Toolkit
The Silverlight Toolkit is required to use the graphic designer in Visual Studio to design the layout of the Silverlight application. You can download this component from the following location:
https://silverlight.codeplex.com/releases/view/78435
Silverlight 5 Developer Runtime
To view the Silverlight project in Visual Studio 2010, you must have the Silverlight 5 Developer Runtime. To install this runtime on your development machine, you will need to uninstall the standard Silverlight 5 runtime first. You can download the Silverlight 5 Developer Runtime from the following location: