• When you apply it to an assembly, it applies to all types and members of the assembly.Version Information.NET FrameworkSupported in: 4.NET Framework Client ProfileSupported in: 4PlatformsWindows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2