http://blogs.msdn.com/sqlclr/archive/2006/10/18/dynamic-assembly-loading.aspxSimple question: what security permission level is required to allow dynamic loading of assemblies? Trick question: dynamic assembly loading is always disallowed under SQL CLR, even under UNSAFE. This is mentioned twice in BOL: CLR Integration Programmingen-USCommunityServer 2.1 SP1 (Build: 61025.2)