. There is no official Windows Update (KB) that "backports" or adds the GetSystemTimePreciseAsFileTime API to Windows 7. OS Requirement:
This error happens because the software requires a high-precision time function that is natively available only in Windows 8, Windows Server 2012, and later versions. Windows 7 (even with Service Pack 1) lacks this specific API in its kernel32.dll .
According to Microsoft documentation , GetSystemTimePreciseAsFileTime is a function introduced in Windows 8 and Windows Server 2012. It retrieves the current system date and time with the highest possible level of precision (less than 1 microsecond). It is often used in: High-frequency trading applications. Multimedia processing. Performance profiling tools.
Alternatively, some developers have resorted to using an older compiler toolset, such as Visual Studio's v141_xp toolset, which targets an older platform SDK that does not know about the new API, effectively avoiding the issue altogether. getsystemtimepreciseasfiletime windows 7 upd
of the software that still support Windows 7. For iperf3, versions 3.14 and 3.16 are known to work reliably.
#define _WIN32_WINNT 0x0601 // Target Windows 7 #include <windows.h>
ULONGLONG total100ns = (seconds * 10000000) + remainder100ns; Windows 7 (even with Service Pack 1) lacks
: If the developer recently updated their compiler (e.g., to MSVC v145), they may have dropped Windows 7 support. Look for a version of the software released before the update.
This article explores why this error occurs, why a simple cannot fix it natively, and the step-by-step workarounds available to restore your favorite software on Windows 7. What is GetSystemTimePreciseAsFileTime ?
"无法定位程序输入点 GetSystemTimePreciseAsFileTime 于动态链接库 kernel32.dll 上" (in Chinese systems) or: It is often used in: High-frequency trading applications
: Developers often update their tools (like Visual Studio ) to use modern APIs, which can accidentally break compatibility with Windows 7.
The user is on Windows 8, 10, or 11. Use the precise version.
