We’ve released a slight update to the COM Shim Wizard. This is available as a free download here , and the covering article is on MSDN here . The differences Between v2.3.0.0 and v2.3.1.0 are summarized below. Setup The major difference between...

Harry 'Play It Again Sam' Miller has posted a wonderfully funny video on this topic - with a serious message. You've got to check this one out: http://blogs.msdn.com/vsto/archive/2008/08/12/activating-a-custom-tab-on-the-ribbon-when-a-document-is-opened...

You can expose an arbitrary object from your add-in as a kind of extension to the Office host application’s object model. To do this, you set your object as the value of the Object property on the COMAddIn object that represents your add-in in the host...

In general, it is important that any code in a managed Office add-in should execute on the main UI thread. The reason for this is that there are several components that simply will not work when executed from any other but the main UI thread – examples...