typedef struct _ALPC_PORT_ATTRIBUTES
{
    unsigned long Flags;
    SECURITY_QUALITY_OF_SERVICE SecurityQos;
    unsigned __int64 MaxMessageLength;
    unsigned __int64 MemoryBandwidth;
    unsigned __int64 MaxPoolUsage;
    unsigned __int64 MaxSectionSize;
    unsigned __int64 MaxViewSize;
    unsigned __int64 MaxTotalSectionSize;
    unsigned long DupObjectTypes;
    unsigned long Reserved;
} ALPC_PORT_ATTRIBUTES, *PALPC_PORT_ATTRIBUTES;