I have created a new project and im trying to follow Ted Pattison's "Office Developer Screencast" for creating your own ribbon. I just added Microsoft.Office.Core to the project but it won't let me add IRibbonExtensibility from the drop down selections,I have installed the latest SDK (Sept 06) and Power Toys, also the Visual Studio 2005 tools for Office Second Edition Beta, is there anything else i need?

namespace DPPMacros

using System;

using Extensibility;

using System.Runtime.InteropServices;

using Microsoft.Office.Core;

[GuidAttribute("BBF36B84-9826-49C1-883F-41F650064095"), ProgId("DPPMacros.Connect")]

public class Connect : Object, Extensibility.IDTExtensibility2, IR******************************

Keep in mind that you have to install Office 2007 to take advantage of this functionality and use Office 2007 PIAs (primary interop assemblies).

I also suggest you to try VSTO 2005 SE to create ribbons. Just create new Office 2007 Excel AddIn, right click on the project item and select "Add Item" - along with other you will see a "Ribbon Support" item. Once you create Ribbon, you will need to uncomment some code at the top of the Ribbon.cs file - but then press F5 and you will see the (although minimal) ribbon show up.