The Silverlight plug-in can be downloaded and installed directly. Users are only required to have a supported operating system and supported Web browser installed to use Silverlight applications. All other requirements to run a Silverlight application are embedded within the Silverlight plug-in. The Silverlight 2 plug-in installation screen is shown in the figure below.
The installation screen shown when Silverlight 2 installs successfully is shown in the figure below.
As a developer with Visual Studio 2008 installed, you will want to download and install the Silverlight 2 Tools for Visual Studio 2008 SP1. This download includes the Silverlight 2 plug-in, the Silverlight 2 software development kit (SDK), and the tools for Visual Studio 2008. The Silverlight plug-in installed by the Silverlight 2 Tools is a special "developer-only" build which includes more debugging information than the end-user runtime. The Silverlight 2 Tools for Visual Studio 2008 installation wizard is shown in the figure below: