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//0x40 bytes (sizeof)
struct _RTL_LOOKASIDE
{
    union _SLIST_HEADER ListHead;                                           //0x0
    USHORT Depth;                                                           //0x8
    USHORT MaximumDepth;                                                    //0xa
    ULONG TotalAllocates;                                                   //0xc
    ULONG AllocateMisses;                                                   //0x10
    ULONG TotalFrees;                                                       //0x14
    ULONG FreeMisses;                                                       //0x18
    ULONG LastTotalAllocates;                                               //0x1c
    ULONG LastAllocateMisses;                                               //0x20
    ULONG LastTotalFrees;                                                   //0x24
};