: Legacy APIs like GetSystemTimeAsFileTime offer a time resolution of 1 to 16 milliseconds. Modern applications demand sub-microsecond precision (
While many "magic" api-ms-win-core-sysinfo-l1-2-0.dll fixes exist on the internet for other errors (like the Universal C Runtime), they generally cannot emulate GetSystemTimePreciseAsFileTime because the required underlying high-precision system hooks are absent in the Windows 7 kernel. 4. Workarounds for Windows 7 Users
is a popular third-party wrapper that acts as an "extended kernel" for Windows 7. It intercepts calls to modern APIs (like GetSystemTimePreciseAsFileTime
// Calculate elapsed 100-ns intervals since init elapsed = (currentCounter.QuadPart - initialCounter.QuadPart) * 10000000; elapsed = elapsed / freq.QuadPart; // Convert to 100-ns units getsystemtimepreciseasfiletime windows 7 patched
But for one beautiful, fraudulent evening, a Windows 7 machine had tasted the future. And the future, she realized, isn't about being correct. It's about being precise enough that no one dares question you before the trade clears.
When an application compiled for Windows 8 or later calls GetSystemTimePreciseAsFileTime on a vanilla Windows 7 system, the loader fails to resolve the import. The result is a runtime error: "The procedure entry point GetSystemTimePreciseAsFileTime could not be located in the dynamic link library KERNEL32.dll." This prevents modern tools, libraries (e.g., recent versions of Node.js, Python, or custom performance software), or patched binaries from running on Windows 7.
: This legacy function fetches the current system date and time. It relies on the standard system timer interrupt interval, yielding a relatively coarse precision of 10 to 15 milliseconds. : Legacy APIs like GetSystemTimeAsFileTime offer a time
In some cases, community-created compatibility wrappers (like specific api-ms-win dll sets) might help, but they are unreliable for GetSystemTimePreciseAsFileTime . B. For Developers
static LONGLONG llBasePerformanceCount = 0; static LONGLONG llBaseSystemTime = 0; LARGE_INTEGER liCurrentCount, liFrequency; // Get coarse time and performance counter SYSTEMTIME stUTC; GetSystemTimeAsFileTime((FILETIME*)&llBaseSystemTime);
if (llBasePerformanceCount == 0) llBasePerformanceCount = liCurrentCount.QuadPart; Workarounds for Windows 7 Users is a popular
Modern compilers (like Visual Studio’s newer platform toolsets) often build programs that depend on this newer API by default, even if the application developer didn't explicitly write it into their code. How to "Patch" or Fix the Error
Understanding the core system limitation helps clarify why standard troubleshooting methods fail:
If you are still maintaining Windows 7 code:
BOOL IsWindows8OrLater(void) OSVERSIONINFOEXW osvi = sizeof(osvi), 0, 0, 0, 0, 0, 0, 0 ; // Use VerifyVersionInfo for reliable detection DWORDLONG dwlConditionMask = 0; VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL); VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);