of VSTO will only work with certain releases and editions of Microsoft Office 2003 and related products. Specifically, VSTO solutions developed in editions prior to VSTO 2005 SE will not work with any edition of Office 2003 other than Professional. VSTO solutions developed with VSTO 2005 SE will work with Office 2003 Standard (only application-level add-ins) and Professional. VSTO 2005 SE solutions will work with all editions of Office 2007. See also Microsoft Visual Studio Visual Studio Tools for Applications (VSTA) References External links Visual Studio Tools for Office homepage VSTO 2.0 SE (VS 2005) Add-in (Office 2003 and Office 2007) VSTO 2.0 SE (VS 2005) Runtime for Office 2003 and Office 2007 VSTO 3.0 (VS 2008) Runtime for Office 2007 VSTO 4.0 (VS 2010/2012/2013) Runtime for Office 2007/2010/2013 (permalink) Jake Ginnivan: Adding Value to Software projects with VSTO Tools for Office