Getsystemtimepreciseasfiletime Windows 7 Upd _verified_ Link
The Search for GetSystemTimePreciseAsFileTime on Windows 7: Understanding the Gap
But this only improves to ~1 ms, not microseconds. getsystemtimepreciseasfiletime windows 7 upd
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// To maintain precision without floating point math: // We calculate the seconds and remainder ticks separately. ULONGLONG seconds = elapsedTicks / s_frequency.QuadPart; ULONGLONG remainderTicks = elapsedTicks % s_frequency.QuadPart;