Min version	XP SP2	2003/XP64	2003/XP64 SP1
Max version	XP SP3		10 TH2
Architecture	x86	x86	x86	x64
x86 offset offset:bitpos	Field Name				x64 offset offset:bitpos
0x0000	unsigned long Signature				0x0000
0x0004	unsigned long HeapFlags				0x0004
0x0008	struct _RTL_CRITICAL_SECTION * HeapCritSect				0x0008
0x000C	unsigned long nRemoteLockAcquired				0x0010
0x0010	struct _DPH_HEAP_BLOCK * pVirtualStorageListHead				0x0018
0x0014	struct _DPH_HEAP_BLOCK * pVirtualStorageListTail				0x0020
0x0018	unsigned long nVirtualStorageRanges				0x0028
0x001C	uintptr_t nVirtualStorageBytes				0x0030
0x0020	struct _DPH_HEAP_BLOCK * pBusyAllocationListHead		struct _RTL_AVL_TABLE BusyNodesTable		0x0038
0x0024	struct _DPH_HEAP_BLOCK * pBusyAllocationListTail
0x0028	unsigned long nBusyAllocations
0x002C	unsigned long nBusyAllocationBytesCommitted
0x0030	struct _DPH_HEAP_BLOCK * pFreeAllocationListHead
0x0034	struct _DPH_HEAP_BLOCK * pFreeAllocationListTail
0x0038	unsigned long nFreeAllocations
0x003C	unsigned long nFreeAllocationBytesCommitted
0x0040	struct _DPH_HEAP_BLOCK * pAvailableAllocationListHead
0x0044	struct _DPH_HEAP_BLOCK * pAvailableAllocationListTail
0x0048	unsigned long nAvailableAllocations
0x004C	unsigned long nAvailableAllocationBytesCommitted
0x0050	struct _DPH_HEAP_BLOCK * pUnusedNodeListHead
0x0054	struct _DPH_HEAP_BLOCK * pUnusedNodeListTail
0x0058	unsigned long nUnusedNodes		struct _DPH_HEAP_BLOCK * NodeToAllocate		0x00A0
0x005C	unsigned long nBusyAllocationBytesAccessible		unsigned long nBusyAllocations		0x00A8
0x0060	struct _DPH_HEAP_BLOCK * pNodePoolListHead		uintptr_t nBusyAllocationBytesCommitted		0x00B0
0x0064	struct _DPH_HEAP_BLOCK * pNodePoolListTail		struct _DPH_HEAP_BLOCK * pFreeAllocationListHead		0x00B8
0x0068	unsigned long nNodePools		struct _DPH_HEAP_BLOCK * pFreeAllocationListTail		0x00C0
0x006C	unsigned long nNodePoolBytes		unsigned long nFreeAllocations		0x00C8
0x0070	struct _DPH_HEAP_ROOT * pNextHeapRoot	struct _LIST_ENTRY NextHeap	uintptr_t nFreeAllocationBytesCommitted		0x00D0
0x0074	struct _DPH_HEAP_ROOT * pPrevHeapRoot		struct _LIST_ENTRY AvailableAllocationHead		0x00D8
0x0078	unsigned long nUnProtectionReferenceCount	unsigned long ExtraFlags
0x007C	unsigned long InsideAllocateNode	unsigned long Seed	unsigned long nAvailableAllocations		0x00E8
0x0080	unsigned long ExtraFlags	void * NormalHeap	uintptr_t nAvailableAllocationBytesCommitted		0x00F0
0x0084	unsigned long Seed	struct _RTL_TRACE_BLOCK * CreateStackTrace	struct _DPH_HEAP_BLOCK * pUnusedNodeListHead		0x00F8
0x0088	void * NormalHeap	void * FirstThread	struct _DPH_HEAP_BLOCK * pUnusedNodeListTail		0x0100
0x008C	struct _RTL_TRACE_BLOCK * CreateStackTrace		unsigned long nUnusedNodes		0x0108
0x0090	void * FirstThread		uintptr_t nBusyAllocationBytesAccessible		0x0110
0x0094			struct _DPH_HEAP_BLOCK * pNodePoolListHead		0x0118
0x0098			struct _DPH_HEAP_BLOCK * pNodePoolListTail		0x0120
0x009C			unsigned long nNodePools		0x0128
0x00A0			uintptr_t nNodePoolBytes		0x0130
0x00A4			struct _LIST_ENTRY NextHeap		0x0138
0x00AC			unsigned long ExtraFlags		0x0148
0x00B0			unsigned long Seed		0x014C
0x00B4			void * NormalHeap		0x0150
0x00B8			struct _RTL_TRACE_BLOCK * CreateStackTrace		0x0158
0x00BC			void * FirstThread		0x0160