| Platform SDK: Performance Monitoring | 
The PSAPI_WS_WATCH_INFORMATION structure contains information about a page added to a process working set.
typedef struct _PSAPI_WS_WATCH_INFORMATION {
    LPVOID FaultingPc;
    LPVOID FaultingVa;
} PSAPI_WS_WATCH_INFORMATION, *PPSAPI_WS_WATCH_INFORMATION;
  Windows NT/2000: Requires Windows NT 4.0 or later.
  Header: Declared in Psapi.h.
Process Status Helper Overview, PSAPI Structures, GetWsChanges