Excel won't open/launch VSTO AddIn when running in debug mode of Visual Studio 2010

Question

I had previously installed the VS11 beta, and had some issues with my Visual Studio 2010 instance, which you can see here how they were resolved: Excel AddIn Click Once depl

Answer 1

You can reenable a hard-disabled Add-In with Excel

http://msdn.microsoft.com/en-us/library/ms268871(v=vs.80).aspx