Setup for VSTO 3.0 Outlook 2007 Plugin with MSIhttp://developers.de/blogs/rolf_nebhuth/archive/2009/05/14/setup-for-vsto-3-0-outlook-2007-plugin-with-msi.aspxIf you want to install a VSTO Plugin with VSTO 3.0 the default way is to deploy this application with Click Once ( Publishing of Outlook 2007 AddIn with ClickOnce and VS2008 ). This approach has the disadvantage that the user must install the plug-inenCommunityServer 2008 SP1 (Build: 30619.63)