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//0x18 bytes (sizeof)
struct _MI_VAD_EVENT_BLOCK
{
    struct _MI_VAD_EVENT_BLOCK* Next;                                       //0x0
    ULONG WaitReason;                                                       //0x4
    union
    {
        struct _KGATE Gate;                                                 //0x8
        struct _MMADDRESS_LIST SecureInfo;                                  //0x8
        struct _RTL_BITMAP BitMap;                                          //0x8
        struct _MMINPAGE_SUPPORT* InPageSupport;                            //0x8
        struct _MI_PHYSMEM_BLOCK PhysicalMemory;                            //0x8
        struct _MI_LARGEPAGE_MEMORY_INFO* LargePage;                        //0x8
    };
};