Getsystemtimepreciseasfiletime Windows 7 Upd [better] 〈2K〉
// assume baseFT, baseCounter, freq populated earlier LONGLONG baseTicks = (((LONGLONG)baseFT.dwHighDateTime) << 32) | baseFT.dwLowDateTime; LONGLONG elapsedCounter = curCounter.QuadPart - baseCounter.QuadPart; LONGLONG elapsed100ns = (elapsedCounter * 10000000) / freq.QuadPart; LONGLONG newTicks = baseTicks + elapsed100ns; // convert newTicks back to FILETIME
: VxKex acts as an extension layer for the Windows 7 kernel. It catches missing function calls (like GetSystemTimePreciseAsFileTime ) and translates them into legacy calls that Windows 7 understands.
If you need the high precision provided by GetSystemTimePreciseAsFileTime , you may want to consider upgrading to Windows 8 or a later version of Windows. getsystemtimepreciseasfiletime windows 7 upd
The most frequent and frustrating issue developers encounter is the assumption that GetSystemTimePreciseAsFileTime is universally available across all modern Windows versions. This is not the case. The function has been available on Windows 7. According to the official Microsoft documentation and corroborated by countless developer reports, the function only exists on Windows 8 and newer client versions, and Windows Server 2012 and newer server versions.
Some users may experience issues installing this update, such as "Installer encountered an error 0x80070422". The most frequent and frustrating issue developers encounter
If it compiles and runs without linking errors, you're good.
user wants a long article about GetSystemTimePreciseAsFileTime specifically in the context of Windows 7, including any update or patch requirements. I need to provide comprehensive technical information. I will follow the search plan outlined in the hints. search results show that GetSystemTimePreciseAsFileTime is not available in Windows 7 without a patch. The search results include references to an extended kernel patch (result 0), a Chinese article about using it on Windows 7 (result 1), and various issues and discussions. I should open these to get more details. CodeProject link might be broken. I'll search for "High Resolution Time For Windows 7" again.'ll open result 0. CodeProject page might be inaccessible. I'll search for "GetSystemTimePreciseAsFileTime Windows 7 fallback" and "GetSystemTimePreciseAsFileTime Windows 7 kernel32.dll" for more information. will open result 0 from the first search, result 3 from the second search, and result 0 from the third search. have gathered sufficient information to write a comprehensive article. The article will cover the function's purpose, availability on Windows 7, the cause of errors (missing API), the lack of an official Microsoft update, community solutions (fallback code, extended kernel, special builds), workarounds, and the long-term solution (upgrading Windows). I will also include a C++ code example and a table summarizing solutions. Now I will write the article. is a comprehensive guide to everything you need to know about the GetSystemTimePreciseAsFileTime API, focusing on its relationship with Windows 7 and how to navigate its lack of native support. breaking backwards compatibility.
| Windows Version | GetSystemTimePreciseAsFileTime available? | |----------------|----------------------------------------------| | Windows 7 RTM | ❌ No | | Windows 7 SP1 (no updates) | ❌ No | | Windows 7 SP1 + KB3033929 | ✅ Yes | | Windows 7 SP1 + Convenience Rollup KB3125574 | ✅ Yes | | Windows 8 and later | ✅ Yes (natively) |
This mimics the behavior of the "Precise" function, though it requires more complex logic to handle "clock drift" over long periods. Why does this matter today?
Because Microsoft formally ended extended support for Windows 7, . Modern compiler toolsets like Microsoft Visual C++ MSVC v145 and MSYS2/MinGW64 automatically bake dependencies for GetSystemTimePreciseAsFileTime into generated .exe and .dll binaries, breaking backwards compatibility.