Api-ms-win-core-memory-l1-1-6.dll May 2026
The error message referencing api-ms-win-core-memory-l1-1-6.dll typically indicates that a program (often a game or a newer application) is trying to use a Windows function that your current version of Windows does not support.
Here is a breakdown of what this file is, why the error occurs, and how to fix it.
Step-by-step solutions:
13. Summary
api-ms-win-core-memory-l1-1-6.dll is not a standard DLL but an API Set forwarder. It does not contain real code — only redirection metadata. Missing or broken copies indicate a larger OS component problem, not a missing isolated file. Fix via Windows servicing tools, not by manual download.
The error regarding the missing api-ms-win-core-memory-l1-1-6.dll file typically occurs when a program—often a game like Halo Infinite
—attempts to call a specific memory management function that isn't supported by your current version of Windows. This specific version of the DLL is generally associated with newer Windows 10/11 features and is often missing on older systems like Windows 7 or 8.1. Microsoft Learn Recommended Fixes Install/Repair Visual C++ Redistributables api-ms-win-core-memory-l1-1-6.dll
: This is the most common fix for missing "api-ms-win-core" files. Download the latest Microsoft Visual C++ Redistributable versions). If they are already installed, choose the option during the setup. Run Windows Update
: Ensure your system has the latest security and framework updates. These updates often include the Universal C Runtime (CRT) components required for these DLLs to function. System File Checker (SFC)
: To fix potential corruption in existing system files, run the Command Prompt as an Administrator and enter sfc /scannow . If that doesn't work, follow it with DISM /Online /Cleanup-Image /RestoreHealth For Steam Deck/Linux Users : If you encounter this error while playing Halo Infinite , navigate to the game's Properties Compatibility and try switching to the Proton Hotfix
or disabling "Force the use of a specific Steam Play compatibility tool" to trigger a specific download. Note on Manual Downloads or free virtual memory
: Avoid downloading individual DLL files from third-party "DLL fixer" sites. These files are often outdated or can contain malware. Always prefer official Microsoft installers or the software's own repair tools. Are you seeing this error with a specific game application
5. Running a Cracked or Poorly Packaged Portable App
Portable applications (especially games or tools from unofficial sources) sometimes hardcode dependencies on specific API set versions. If the packager stripped essential files, the error appears.
4. Run the App in Windows 8/7 Compatibility Mode (Unlikely to help)
You can try this, but it rarely works for API Set errors.
- Right-click the
.exe> Properties > Compatibility > Run compatibility troubleshooter.
Solution 6: Reinstall the Problematic Application
If the error occurs only when launching one specific program: it may land on this DLL
- Uninstall that program completely.
- Restart your computer.
- Download a fresh copy from the official developer’s website.
- Reinstall, ensuring you run the installer as Administrator.
Introduction
In the Windows operating system ecosystem, particularly starting with Windows 8 and Windows Server 2012, Microsoft introduced a new file structure known as the Api Set Schema. Files beginning with api- and ending with the .dll extension are not traditional DLLs (Dynamic Link Libraries) in the sense that they contain executable code libraries; rather, they are redirection logical units.
api-ms-win-core-memory-l1-1-6.dll is one such specific module. It serves as a bridge for core memory management functions. This article explores its purpose, why errors occur involving this file, and how to resolve them.
1. Overview: What is this DLL?
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).
- Full name: API Set Windows Core Memory Library
- Purpose: Manages memory-related system calls (allocate, free, map, view, protect, query memory).
- Introduced with: Windows 8 / Windows Server 2012 (though 1-1-6 versioning continues in Windows 10/11).
- Type: API Set (redistributable only as part of the OS, not downloadable individually).
What does it do?
api-ms-win-core-memory-l1-1-6.dll is a redistributable API set that provides memory management functions for applications. When a program attempts to allocate, reserve, or free virtual memory, it may land on this DLL, which then forwards the call to the actual system DLL (like kernel32.dll or ntdll.dll).
In short: This file is a forwarder. It does not contain the core logic itself, but without it, the application cannot resolve memory-related system calls.