Represents an extension for SharePoint projects.
public interface ISharePointProjectExtension
Implement the ISharePointProjectExtension interface to define an extension that is loaded when any SharePoint project is opened in Visual Studio. For more information, see Extending SharePoint Projects and How to: Create a SharePoint Project Extension.
Classes that implement this interface must include the System.ComponentModel.Composition.ExportAttribute to be discovered by the project system.
Initializes the SharePoint project extension.