I tried using Rhino.Mocks in production test code for the first time the other day. I downloaded the latest version from Oren Eini's website, unzipped it into source control, and added a reference to my project.
I wrote a quick test utilising the interface mocking features and hit Ctrl+Alt+X to run the test. SecurityException! The message, which I've since forgotten, was complaining that the referenced assembly (ie Rhino.Mocks.dll) could not be loaded.
A quick Google provided the solution, you need to ensure you've unblocked any files you have downloaded from the Internet or a network machine. Now I'm happily mocking away.
dasBlog theme based on original by Mads Kristensen
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in anyway.