Amd64 and x86 packages

Question

When I create a website that uses SQL Server Compact / CE 4.0 in private deployment mode, then I get two additional folders inside / bin: amd64 and x86, which contain an assembly that is not related to the AnyCCU platform.

Is this subfolder feature globally available in .NET, is it website specific or even SQLCE4 specific? And how could I say? (I already searched for System.Data.SqlServerCe.dll using Reflector.)

Answer 1

I figured out using Reflector and found the appropriate code in In NativeMethods.cs - LoadNativeBinariesFromPrivateFolder (used by LoadNativeBinaries, which is called from all sides).