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//0x58 bytes (sizeof)
struct _MMSESSION
{
    struct _FAST_MUTEX SystemSpaceViewLock;                                 //0x0
    struct _FAST_MUTEX* SystemSpaceViewLockPointer;                         //0x38
    struct _MMVIEW* SystemSpaceViewTable;                                   //0x40
    ULONG SystemSpaceHashSize;                                              //0x48
    ULONG SystemSpaceHashEntries;                                           //0x4c
    ULONG SystemSpaceHashKey;                                               //0x50
    ULONG BitmapFailures;                                                   //0x54
};