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The FILETIME structure is a 64-bit value that represents the number of 100-nanosecond intervals that have elapsed since January 1, 1601, Coordinated Universal Time (UTC).

 typedef struct _FILETIME {
   DWORD dwLowDateTime;
   DWORD dwHighDateTime;
 } FILETIME,
  *PFILETIME,
  *LPFILETIME;

dwLowDateTime: A 32-bit unsigned integer that contains the low-order bits of the file time.

dwHighDateTime: A 32-bit unsigned integer that contains the high-order bits of the file time.