: It wraps the application's executable so that when it asks for the missing function, VxKex provides a simulated version of it. Stack Overflow 2. Update Common Runtimes

Advanced users often use community-made "extended kernels" like . These tools act as a shim, intercepting calls to modern APIs (like GetSystemTimePreciseAsFileTime ) and redirecting them to compatible functions that do exist on Windows 7.

Some open-source projects (like those porting Chromium or modern games to Win7) use a custom DLL to "spoof" the function.