// Start from the initial system time and add offset preciseTime = ((ULONGLONG)initialTime.dwHighDateTime << 32) + initialTime.dwLowDateTime; preciseTime += elapsed;
Microsoft Visual Studio’s newer MSVC Platform Toolsets (such as v145) link the standard C++ runtime library directly to GetSystemTimePreciseAsFileTime . getsystemtimepreciseasfiletime windows 7 patched
: Available since Windows 2000. It has a relatively low resolution (roughly 1 to 16 milliseconds). It works perfectly on Windows 7. // Start from the initial system time and
: It was designed to bridge the gap between standard system time and the high-resolution performance counter (QPC). It works perfectly on Windows 7
Calling GetSystemTimeAsFileTime to get the base wall-clock time.
Modern Software Compilation [Compiler/Toolchain] ───> Hardcodes dependency on GetSystemTimePreciseAsFileTime │ ▼ Execution Attempted ┌───────────────────────────┐ │ Windows 8 / 10 / 11 │ ───> Success (API exists) └───────────────────────────┘ ┌───────────────────────────┐ │ Windows 7 │ ───> CRASH (KERNEL32.dll Missing Export) └───────────────────────────┘
A wrapper DLL redirects calls intended for GetSystemTimePreciseAsFileTime to a custom implementation.