The Visual Studio 2010 SDK Beta 1 provides tools and templates for building Visual Studio extensions. By using the Visual Studio SDK, you can build your own tool windows, create menu commands, and add extensions to the new Visual Studio editor and other features.
The Visual Studio 2010 SDK includes project templates that help developers create tool windows, menu commands, isolated shell projects, and editor extensions. The editor extensions include text adornments, colorizers, and margins.
The Visual Studio 2010 SDK also includes build tasks that help developers build and debug extensions. Building and debugging are managed in a second instance of Visual Studio named the experimental instance. The experimental instance provides a test bed for extensions without changing the primary installation of Visual Studio.
The SDK also puts shortcuts to online documentation, samples, and other developer resources on the Start menu.