typedef struct _MMPTE_TIMESTAMP
{
    unsigned __int64 MustBeZero : 1;
    unsigned __int64 PageFileLow : 4;
    unsigned __int64 Protection : 5;
    unsigned __int64 Prototype : 1;
    unsigned __int64 Transition : 1;
    unsigned __int64 Reserved : 20;
    unsigned __int64 GlobalTimeStamp : 32;
} MMPTE_TIMESTAMP, *PMMPTE_TIMESTAMP;