Getsystemtimepreciseasfiletime Windows - 7 Patched [2021]

If you are a developer or power user trying to "patch" this support back in, you generally have two paths:

Achieving sub-microsecond time precision on Windows 7 requires stepping outside of Microsoft's native boundaries. While the operating system lacks an official patch for GetSystemTimePreciseAsFileTime , employing a dynamic runtime fallback combined with a robust QueryPerformanceCounter synchronization algorithm allows software engineers to successfully maintain, run, and optimize modern high-performance applications on legacy platforms. Share public link

If you’re looking to actually use a patch today, here are the most reliable sources: getsystemtimepreciseasfiletime windows 7 patched

Microsoft no longer supports Windows 7 (EOL January 2020). However, some enterprises pay for ESU (Extended Security Updates). A patched DLL could break after a security update.

: It retrieves the current system date and time with the highest possible level of precision ( If you are a developer or power user

Last updated: 2025

// Initialize at program startup void InitializeTimeAPI(void) HMODULE hKernel32 = GetModuleHandleA("kernel32.dll"); if (hKernel32) pGetSystemTimePreciseAsFileTime = (PGETSYSTEMTIMEPRECISEASFILETIME) GetProcAddress(hKernel32, "GetSystemTimePreciseAsFileTime"); However, some enterprises pay for ESU (Extended Security

timeBeginPeriod(1); GetSystemTimeAsFileTime(...); // Now ~1 ms resolution timeEndPeriod(1);

GetSystemTimePreciseAsFileTime retrieves the current system date and time in UTC format with the highest possible resolution (<1µs). It stores the result in a FILETIME structure, which represents a 64-bit value counting the number of 100-nanosecond intervals since January 1, 1601 (UTC).