http://msdn.microsoft.com/en-us/library/ms684847(v=VS.85).aspx
DWORD_PTR WINAPI SetThreadAffinityMask(
__in HANDLE hThread,
__in DWORD_PTR dwThreadAffinityMask
);
BOOL WINAPI SetProcessAffinityMask( __in HANDLE hProcess, __in DWORD_PTR dwProcessAffinityMask );
