Api-ms-win-core-memory-l1-1-6.dll -

If you are a developer seeing this error on a user’s machine, the cause is likely that you compiled your project with Windows SDK version 10.0.17763.0 or later, and you did not statically link the UCRT.

api-ms-win-core-memory-l1-1-6.dll is not a traditional dynamic-link library containing executable code. Instead, it is an API Set DLL — a virtual symbol linker. It acts as a redirection layer mapping API calls to the actual implementation in the system’s native DLLs (e.g., kernel32.dll, ntdll.dll).

Sometimes the application expects this DLL via the VC++ runtime. api-ms-win-core-memory-l1-1-6.dll

Sometimes the application can run if it believes it is on a newer OS:

This does not fix the missing DLL, but the OS may redirect calls through a different API set version. If you are a developer seeing this error

This resolves most cases, because the API set files are often distributed with the runtime.

Rarely, a Windows update may fail to update the ApiSet Schema properly, leaving behind inconsistencies where some forwarder DLLs are missing even on a compatible OS. Sometimes the application expects this DLL via the

If you are on an older Windows 10 build (e.g., 1507, 1607), update to at least Windows 10 version 1809 or newer. Windows 7 and 8.x users should upgrade or use Solution 3.

To update:

Note: Windows 7 is not officially supported for API sets beyond l1-1-0. Running modern apps on Windows 7 is not recommended.