http://developers.de/blogs/damir_dobric/archive/2008/01/14/unit-testing-and-internalsvisibleto.aspxJust for documentation purposes, here is the procedure how to do it manually: D:\>sn -Tp TestProject.dll Microsoft (R) .NET Framework Strong Name Utility  Version 3.5.21022.8 Copyright (c) Microsoft Corporation.  All rights reserved. PublicenCommunityServer 2008 SP1 (Build: 30619.63)