typedef struct _NT_TIB64
{
    unsigned __int64 ExceptionList;
    unsigned __int64 StackBase;
    unsigned __int64 StackLimit;
    unsigned __int64 SubSystemTib;
    union
    {
        unsigned __int64 FiberData;
        unsigned long Version;
    };
    unsigned __int64 ArbitraryUserPointer;
    unsigned __int64 Self;
} NT_TIB64, *PNT_TIB64;