Change the default namespace of a VSTO project

Is it possible to change the default namespace of a VSTO project?... I've tried opening the project file in notepad and changing the rootnamespace xml param to my new desired name, but it fails to load th开发者_JAVA技巧e add-in when Word starts. It throws a generic runtime error. I suspect that the manifest still points to the previous namespace.

Any ideas?

---

"Officially", you cannot change the default namespace of a VSTO project. But there is a way, by editing the project file and doing some find&replace. This blog post explains how to do it.