Zitat:

If you use Visual Studio 2008 to develop and build an add-in, strictly speaking the development computer should have the version of Office targeted by the project template installed (i.e., Office 2003 or Office 2007). If you have Office 2010 installed on the development computer, you might be able to follow the steps at http://blogs.msdn.com/vsto/archive/2008/03/20/developing-an-add-in-for-multiple-versions-of-office.aspx to tweak an Office 2007 project so that it runs/debugs in Office 2010, but I'm not sure this will work, and it probably isn't supported.

Danke für die Hilfe

Gruß Christian