Min version	8.1 Update 1	8.1	10 Pre RTM
Max version		8.1 Update 1	10 TH2
Architecture	x86	x64	x86	x64
x86 offset offset:bitpos	Field Name				x64 offset offset:bitpos
0x0000	uint8_t BucketIndex		uint8_t IsBucket		0x0000
0x0000:0x01			uint8_t Spare0		0x0000:0x01
0x0001	uint8_t IsBucket		uint8_t BucketIndex		0x0001
0x0002	uint16_t SlotIndex		uint8_t SlotCount		0x0002
0x0002	uint8_t AffinitySlotMask		uint8_t SlotIndex		0x0002
0x0003	uint8_t Spare		uint8_t Spare1		0x0003
0x0004	uintptr_t AvailableSubsegmentCount				0x0008
0x0008	struct _RTL_SRWLOCK Lock				0x0010
0x000C	struct _LIST_ENTRY AvailableSubsegmentList				0x0018
0x0014	struct _LIST_ENTRY FullSubsegmentList				0x0028