typedef struct _MMSUBSECTION_FLAGS
{
    unsigned short SubsectionAccessed : 1;
    unsigned short Protection : 5;
    unsigned short StartingSector4132 : 10;
    unsigned short SubsectionStatic : 1;
    unsigned short GlobalMemory : 1;
    unsigned short DirtyPages : 1;
    unsigned short Spare : 1;
    unsigned short SectorEndOffset : 12;
} MMSUBSECTION_FLAGS, *PMMSUBSECTION_FLAGS;