Molto ma molto utili per chi deve fare sviluppo per
Office...
Adds summary descriptions of types, members, and parameters to IntelliSense ToolTips in code and in the Object Browser for Microsoft Office Word 2003, Microsoft Office Excel 2003, Microsoft Office Outlook 2003, and Microsoft Office 2003 Shared PIAs in Microsoft Visual Studio .NET 2003 and Visual Studio 2005.
Fonte: VSTO - Office PIA IntelliSense