Visual Studio Tools for Office (VSTO) is a set of tools for the
C# and VB.NET developer. It primarily aids in extending the user interface of
Office 2003, 2007,2010 and
2013 applications. Using the VSTO templates the developer can create managed code COM Add-ins for many Office applications. For Word and Excel, VSTO also offers a managed code alternative to VBA in the form of document-level customization templates.
For more information, see the Please
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The Visual Studio Tools for Office (VSTO) forum is for VSTO-specific questions. Please feel free to post questions or issues specifically related to developing managed code applications using VSTO.
If you have questions or issues pertaining to non-VSTO specific topics such as Office application versions other than those listed above - "apps for Office", VBA, classic VB, C++, ASP.NET, WinForms, Shared Add-ins, etc., please post them
in the appropriate Microsoft forum or newsgroup. The list of links below will provide you with a good starting point from which you can find the right forum or newsgroup for your question.
These links provide access to complete lists of Microsoft forums and newsgroups.