struct _ALPC_MESSAGE_ZONE// Size=0x30
{
    struct _MDL * Mdl;// Offset=0x0 Size=0x8
    void * UserVa;// Offset=0x8 Size=0x8
    void * UserLimit;// Offset=0x10 Size=0x8
    void * SystemVa;// Offset=0x18 Size=0x8
    void * SystemLimit;// Offset=0x20 Size=0x8
    unsigned long long Size;// Offset=0x28 Size=0x8
};