struct _IO_MINI_COMPLETION_PACKET_USER// Size=0x50
{
    struct _LIST_ENTRY ListEntry;// Offset=0x0 Size=0x10
    unsigned long PacketType;// Offset=0x10 Size=0x4
    void * KeyContext;// Offset=0x18 Size=0x8
    void * ApcContext;// Offset=0x20 Size=0x8
    long IoStatus;// Offset=0x28 Size=0x4
    unsigned long long IoStatusInformation;// Offset=0x30 Size=0x8
    void  ( * MiniPacketCallback)(struct _IO_MINI_COMPLETION_PACKET_USER * ,void * );// Offset=0x38 Size=0x8
    void * Context;// Offset=0x40 Size=0x8
    unsigned char Allocated;// Offset=0x48 Size=0x1
};