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//0x18 bytes (sizeof)
struct _MMPFN
{
    union
    {
        ULONG Flink;                                                        //0x0
        ULONG WsIndex;                                                      //0x0
        struct _KEVENT* Event;                                              //0x0
        VOID* Next;                                                         //0x0
        VOID* volatile VolatileNext;                                        //0x0
        struct _KTHREAD* KernelStackOwner;                                  //0x0
        struct _SINGLE_LIST_ENTRY NextStackPfn;                             //0x0
    } u1;                                                                   //0x0
    union
    {
        ULONG Blink;                                                        //0x4
        struct _MMPTE* ImageProtoPte;                                       //0x4
        ULONG ShareCount;                                                   //0x4
    } u2;                                                                   //0x4
    union
    {
        struct _MMPTE* PteAddress;                                          //0x8
        VOID* volatile VolatilePteAddress;                                  //0x8
    };
    union
    {
        struct
        {
            USHORT ReferenceCount;                                          //0xc
            struct _MMPFNENTRY e1;                                          //0xe
        };
        struct
        {
            union
            {
                USHORT ReferenceCount;                                      //0xc
                volatile SHORT VolatileReferenceCount;                      //0xc
            };
            USHORT ShortFlags;                                              //0xe
        } e2;                                                               //0xc
        struct
        {
            USHORT ReferenceCount;                                          //0xc
            UCHAR ByteFlags;                                                //0xe
            UCHAR InterlockedByteFlags;                                     //0xf
        } e3;                                                               //0xc
    } u3;                                                                   //0xc
    union
    {
        struct _MMPTE OriginalPte;                                          //0x10
        volatile LONG AweReferenceCount;                                    //0x10
    };
    union
    {
        ULONG PteFrame:25;                                                  //0x14
        ULONG PfnImageVerified:1;                                           //0x14
        ULONG AweAllocation:1;                                              //0x14
        ULONG PrototypePte:1;                                               //0x14
        ULONG PageColor:4;                                                  //0x14
    } u4;                                                                   //0x14
};