MS has released the Second Edition Beta of VSTO 2007 which works with VS.NET 2005. This is updated to be in sync with Office 2007 Beta 2 Technical Refresh. This can be installed on VS.NET 2005 Professional, Team System or Tools for Office System edition only. Here are the highlights quoted from MS:

  • Application-level add-in projects for six applications in the 2007 Microsoft Office system: Microsoft Office Excel 2007, Microsoft Office InfoPath 2007, Microsoft Office Outlook 2007, Microsoft Office PowerPoint 2007, Microsoft Office Visio 2007, and Microsoft Office Word 2007.
  • Support for the new Ribbon user interface extensibility model.
  • Support for the new application-level customizable task pane.
  • Support for managed code behind InfoPath 2007 forms, which enables the InfoPath 2007 design environment to appear inside Visual Studio 2005 for an integrated experience across your Visual Studio projects. You can use it to design forms with or without managed code.
  • Support for Outlook custom form regions.
  • Application-level add-in projects for five Microsoft Office 2003 applications: Microsoft Office Excel 2003, Microsoft Office Outlook 2003, Microsoft Office PowerPoint 2003, Microsoft Office Visio 2003, and Microsoft Office Word 2003.