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//0x5000 bytes (sizeof)
struct _MM_SESSION_SPACE
{
    volatile LONG ReferenceCount;                                           //0x0
    union
    {
        ULONG LongFlags;                                                    //0x4
        struct _MM_SESSION_SPACE_FLAGS Flags;                               //0x4
    } u;                                                                    //0x4
    ULONG SessionId;                                                        //0x8
    volatile LONG ProcessReferenceToSession;                                //0xc
    struct _LIST_ENTRY ProcessList;                                         //0x10
    ULONGLONG SessionPageDirectoryIndex;                                    //0x20
    volatile ULONGLONG NonPagablePages;                                     //0x28
    volatile ULONGLONG CommittedPages;                                      //0x30
    VOID* PagedPoolStart;                                                   //0x38
    VOID* PagedPoolEnd;                                                     //0x40
    VOID* SessionObject;                                                    //0x48
    VOID* SessionObjectHandle;                                              //0x50
    struct _RTL_AVL_TREE ImageTree;                                         //0x58
    ULONG LocaleId;                                                         //0x60
    ULONG AttachCount;                                                      //0x64
    struct _KGATE AttachGate;                                               //0x68
    struct _LIST_ENTRY WsListEntry;                                         //0x80
    struct _MM_PAGED_POOL_INFO PagedPoolInfo;                               //0x90
    struct _MMSESSION Session;                                              //0xa8
    ULONGLONG CombineDomain;                                                //0xc8
    struct _MMSUPPORT_FULL Vm;                                              //0x100
    struct _MMWSL_INSTANCE WorkingSetList;                                  //0x240
    struct _MMSUPPORT_AGGREGATION AggregateSessionWs;                       //0x280
    VOID* HeapState;                                                        //0x2a0
    struct _POOL_DESCRIPTOR PagedPool;                                      //0x2c0
    struct _MI_SESSION_DRIVER_UNLOAD DriverUnload;                          //0x3c0
    ULONG TopLevelPteLockBits[32];                                          //0x3c8
    struct _MMPTE PageDirectory;                                            //0x448
    struct _EX_PUSH_LOCK SessionVaLock;                                     //0x450
    struct _RTL_BITMAP_EX DynamicVaBitMap;                                  //0x458
    ULONGLONG DynamicVaHint;                                                //0x468
    struct _EX_PUSH_LOCK SessionPteLock;                                    //0x470
    LONG PoolBigEntriesInUse;                                               //0x478
    volatile LONG PagedPoolPdeCount;                                        //0x47c
    ULONG DynamicSessionPdeCount;                                           //0x480
    struct _MI_SYSTEM_PTE_TYPE SystemPteInfo;                               //0x488
    VOID* PoolTrackTableExpansion;                                          //0x4e8
    ULONGLONG PoolTrackTableExpansionSize;                                  //0x4f0
    VOID* PoolTrackBigPages;                                                //0x4f8
    ULONGLONG PoolTrackBigPagesSize;                                        //0x500
    struct _RTL_AVL_TREE PermittedFaultsTree;                               //0x508
    enum _IO_SESSION_STATE IoState;                                         //0x510
    ULONG IoStateSequence;                                                  //0x514
    struct _KEVENT IoNotificationEvent;                                     //0x518
    struct _EJOB* ServerSilo;                                               //0x530
    ULONGLONG CreateTime;                                                   //0x538
    UCHAR PoolTags[16384];                                                  //0x1000
};