To expand on this... "So no native code is used." was probably somewhat misleading. More specifically, no native code is explicitly used. IL may be compiled d

To expand on this... "So no native code is used." was probably somewhat misleading. More specifically, no native code is explicitly used. IL may be compiled down to e.g. x86-64, but you won't have a C DLL being PInvoked from your C# (or other .NET language), nor a C++/CLI DLL compiled against x86-64 specifically. Among other advantages, this usually implies: - Less interop overhead (unmanaged <-> managed transitions are expensive) - Easier dependency management (just include the assembly instead of assembly + native DLLs via installer or whatever) - Portable (more likely to run on e.g. the Mono Runtime on a Linux box with an ARM processor without requiring a build specific to ARM and possibly to Linux)