typedef struct _MMSUPPORT
{
     LIST_ENTRY WorkingSetExpansionLinks;
     WORD LastTrimStamp;
     WORD NextPageColor;
     MMSUPPORT_FLAGS Flags;
     ULONG PageFaultCount;
     ULONG PeakWorkingSetSize;
     ULONG Spare0;
     ULONG MinimumWorkingSetSize;
     ULONG MaximumWorkingSetSize;
     PMMWSL VmWorkingSetList;
     ULONG Claim;
     ULONG Spare[1];
     ULONG WorkingSetPrivateSize;
     ULONG WorkingSetSizeOverhead;
     ULONG WorkingSetSize;
     PKEVENT ExitEvent;
     EX_PUSH_LOCK WorkingSetMutex;
     PVOID AccessLog;
} MMSUPPORT, *PMMSUPPORT;

Windows Vista Kernel Structures