kd> dt _EX_FAST_REF
ntdll!_EX_FAST_REF
   +0x000 Object           : Ptr32 Void
   +0x000 RefCnt           : Pos 0, 3 Bits
   +0x000 Value            : Uint4B


typedef struct _EX_FAST_REF
{
     union
     {
          PVOID Object;
          ULONG RefCnt: 3;
          ULONG Value;
     };
} EX_FAST_REF, *PEX_FAST_REF;
