class Facter::Util::Windows::Process::OSVERSIONINFOEX

msdn.microsoft.com/en-us/library/windows/hardware/ff563620(v=vs.85).aspx typedef struct _OSVERSIONINFOEXW {

ULONG  dwOSVersionInfoSize;
ULONG  dwMajorVersion;
ULONG  dwMinorVersion;
ULONG  dwBuildNumber;
ULONG  dwPlatformId;
WCHAR  szCSDVersion[128];
USHORT wServicePackMajor;
USHORT wServicePackMinor;
USHORT wSuiteMask;
UCHAR  wProductType;
UCHAR  wReserved;

} RTL_OSVERSIONINFOEXW, *PRTL_OSVERSIONINFOEXW;