The Microsoft.Office.Tools.Word..::.Document class is the base class for document host items in Visual Studio Tools for Office projects. The Microsoft.Office.Tools.Word..::.Document class provides the same members as the Microsoft.Office.Interop.Word..::.Document class in the Word primary interop assembly, but it adds the following features:
For more information about the role the Microsoft.Office.Tools.Word..::.Document class plays in Visual Studio Tools for Office projects, see Host Items and Host Controls Overview and Document Host Item.
Creating Document Host Items
In application-level projects created by using Visual Studio 2008 Service Pack 1 (SP1), you can create Microsoft.Office.Tools.Word..::.Document objects programmatically by using the GetVstoObject method of any Microsoft.Office.Interop.Word..::.Document object. For more information, see Extending Word Documents and Excel Workbooks in Application-Level Add-ins at Run Time.
In document-level projects, you cannot create a Microsoft.Office.Tools.Word..::.Document object programmatically. Instead, use the ThisDocument class to programmatically access the document in your project. Visual Studio generates this class in your project at design time. The ThisDocument class derives from the Microsoft.Office.Tools.Word..::.Document class, and it is instantiated automatically by the Visual Studio Tools for Office runtime when the end user opens the document. For more information, see Programming Document-Level Customizations.