Availability of DAX 2009 Snap to Download from the following link:
Offline Expense - This snap-in enables expenses to be entered in Excel while disconnected from the corporate network, and then posted to Dynamics AX at a later time. This snap-in uses WCF-based services and LINQ to retrieve data from Dynamics AX, and uses the Application Integration Framework, or AIF to send business documents to Dynamics AX.
Business Data Lookup (BDL) - This snap-in enables information workers to access data from Dynamics AX from within Excel, Word and Outlook. This snap-in is an upgrade of the BDL snap-in that was distributed with Microsoft Dynamics AX 4.0. These applications require .Net 3.5, Microsoft Office 2007, Microsoft Visual Studio 2008 and Microsoft Dynamics AX 2009. Each snap-in contains a document describing the basic architecture, functional footprint, and deployment steps for exploring the sample code.