Min version	8.1	10 Pre RTM
Max version	8.1 Update 1	10 TH2
x64 offset offset:bitpos	Field Name
0x0000	struct _HEAP_LFH_SUBSEGMENT_OWNER State
0x0038	struct _HEAP_LFH_AFFINITY_SLOT * AffinitySlots	uint64_t TotalBlockCount
0x0040	uint64_t TotalBlockCount	uint64_t TotalSubsegmentCount
0x0048	uint64_t TotalSubsegmentCount	unsigned long ReciprocalBlockSize
0x004C		uint8_t Shift
0x0050		struct _RTL_SRWLOCK AffinityMappingLock
0x0058		unsigned long ContentionCount
0x0060		uint8_t * ProcAffinityMapping
0x0068		struct _HEAP_LFH_AFFINITY_SLOT * * AffinitySlots