System.Reflection.PortableExecutable.Subsystem
EfiApplication = 10
EfiBootServiceDriver = 11
EfiRom = 13
EfiRuntimeDriver = 12
Native = 1
NativeWindows = 8
OS2Cui = 5
PosixCui = 7
Unknown = 0
WindowsCEGui = 9
WindowsCui = 3
WindowsGui = 2
Xbox = 14