System's processor architecture. This value can be one of the following values:
PROCESSOR_ARCHITECTURE_UNKNOWN
Windows NT 3.51: PROCESSOR_ARCHITECTURE_MIPS
Windows NT 4.0 and earlier: PROCESSOR_ARCHITECTURE_ALPHA
Windows NT 4.0 and earlier: PROCESSOR_ARCHITECTURE_PPC
64-bit Windows: PROCESSOR_ARCHITECTURE_IA64, PROCESSOR_ARCHITECTURE_IA32_ON_WIN64, PROCESSOR_ARCHITECTURE_AMD64
Kernel.SYSTEM_INFO_UNION Class | Tao.Platform.Windows Namespace