Today we announced the Beta release of Visual Studio Tools for Office 2005 Second Edition (VSTO SE). This version of VSTO is a free download that you add to Visual Studio 2005 Pro or VSTO 2005. VSTO SE enabled Office 2007 add-in development and it also enables Office 2003 add-in development for the big 6 Office apps: Word, Excel, Outlook, PowerPoint, Visio and InfoPath. InfoPath even has designtime support like Word and Excel in full version of VSTO 2005.
Download and install on top of VS 2005 Pro (or above) or VSTO 2005
Download VSTO 2005 SE
To try out the Office 2007 features download Office 2007
Download Office 2007 Beta 2 Tech Refresh
This product is cool in so many ways:
Did I mention that it is free?
Read the official announcement here.
The VSTO for Mere Mortals book I just finished with Kathleen we have a big chapter on how develop Office 2007 using VSTO 2005 SE. Look for the book to be in bookstores in December.