Hi, Please review these patches: [Mono-dev] [PATCH] Implement support for mixed-mode assemblies on Windows x64 as well: http://lists.ximian.com/pipermail/mono-devel-list/2008-June/028244.html [Mono-dev] [PATCH] Implement internal call builders: http://lists.ximian.com/pipermail/mono-devel-list/2008-June/028291.html Thanks. Kornél