Min version	XP SP2	2003/XP64	2003/XP64 SP1
Max version	XP SP3		10 TH2
x86 offset offset:bitpos	Field Name
0x0000	unsigned long Signature
0x0004	unsigned long HeapFlags
0x0008	struct _RTL_CRITICAL_SECTION * HeapCritSect
0x000C	unsigned long nRemoteLockAcquired
0x0010	struct _DPH_HEAP_BLOCK * pVirtualStorageListHead
0x0014	struct _DPH_HEAP_BLOCK * pVirtualStorageListTail
0x0018	unsigned long nVirtualStorageRanges
0x001C	unsigned long nVirtualStorageBytes
0x0020	struct _DPH_HEAP_BLOCK * pBusyAllocationListHead		struct _RTL_AVL_TABLE BusyNodesTable
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
0x005C	unsigned long nBusyAllocationBytesAccessible		unsigned long nBusyAllocations
0x0060	struct _DPH_HEAP_BLOCK * pNodePoolListHead		unsigned long nBusyAllocationBytesCommitted
0x0064	struct _DPH_HEAP_BLOCK * pNodePoolListTail		struct _DPH_HEAP_BLOCK * pFreeAllocationListHead
0x0068	unsigned long nNodePools		struct _DPH_HEAP_BLOCK * pFreeAllocationListTail
0x006C	unsigned long nNodePoolBytes		unsigned long nFreeAllocations
0x0070	struct _DPH_HEAP_ROOT * pNextHeapRoot	struct _LIST_ENTRY NextHeap	unsigned long nFreeAllocationBytesCommitted
0x0074	struct _DPH_HEAP_ROOT * pPrevHeapRoot		struct _LIST_ENTRY AvailableAllocationHead
0x0078	unsigned long nUnProtectionReferenceCount	unsigned long ExtraFlags
0x007C	unsigned long InsideAllocateNode	unsigned long Seed	unsigned long nAvailableAllocations
0x0080	unsigned long ExtraFlags	void * NormalHeap	unsigned long nAvailableAllocationBytesCommitted
0x0084	unsigned long Seed	struct _RTL_TRACE_BLOCK * CreateStackTrace	struct _DPH_HEAP_BLOCK * pUnusedNodeListHead
0x0088	void * NormalHeap	void * FirstThread	struct _DPH_HEAP_BLOCK * pUnusedNodeListTail
0x008C	struct _RTL_TRACE_BLOCK * CreateStackTrace		unsigned long nUnusedNodes
0x0090	void * FirstThread		unsigned long nBusyAllocationBytesAccessible
0x0094			struct _DPH_HEAP_BLOCK * pNodePoolListHead
0x0098			struct _DPH_HEAP_BLOCK * pNodePoolListTail
0x009C			unsigned long nNodePools
0x00A0			unsigned long nNodePoolBytes
0x00A4			struct _LIST_ENTRY NextHeap
0x00AC			unsigned long ExtraFlags
0x00B0			unsigned long Seed
0x00B4			void * NormalHeap
0x00B8			struct _RTL_TRACE_BLOCK * CreateStackTrace
0x00BC			void * FirstThread