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api-ms-win-crt-multibyte-l1-1-0.dll - Analyze and How to Fix Errors

★★★★★ Verified File (27.08.2026)

Description


Creation date: 20.11.2015 06:52:51
File version: 10.0.10586.15
Antivirus scan: ✅ OK
Category: System
File size: 26.9 kb.
Architecture: 64-bit (x64)
✅ This file is compatible with 64-bit Windows and ❌ will not work on a 32-bit operating system.
How to determine your system architecture: Press keys Win+R , enter symbols wmic os get osarchitecture , press Enter.

Digital file signature api-ms-win-crt-multibyte-l1-1-0.dll

Publisher: Microsoft Corporation
Issuer: Microsoft Code Signing PCA
Encryption algorithm: SHA1
Time stamp: Apr 5 06:03:54 2018 GMT
The file `api-ms-win-crt-multibyte-l1-1-0.dll` is a dynamic-link library (DLL) that is part of the Microsoft C Runtime Library. It supports multibyte character set functions, which are essential for handling text in various languages and character encodings.
MD5: e999c412fd404549d9858cf4c6bc836d
SHA-1: ddf469a06cce9f0087b7393537586bd075e5b2d0
SHA-256: 2824ead1e33c821e9771da59fc6ea4e3ec03fc661f46785a0ecd5e579a55e5c1

Where it is Used

This DLL file is used by a wide range of Windows applications that require support for multibyte string operations. It provides functions for manipulating strings encoded in different character sets, such as ASCII and Unicode. Common programs that might rely on this library include text editors, web browsers, and other software that processes internationalized text.

Errors Related to api-ms-win-crt-multibyte-l1-1-0.dll

You might encounter errors such as: - `api-ms-win-crt-multibyte-l1-1-0.dll not found` - `missing api-ms-win-crt-multibyte-l1-1-0.dll` - `error loading api-ms-win-crt-multibyte-l1-1-0.dll` These errors typically occur when the DLL file is missing or corrupted, which can happen due to various reasons such as software conflicts, hardware issues, or system updates.

File Security

The `api-ms-win-crt-multibyte-l1-1-0.dll` file is considered safe and is a legitimate part of the Windows operating system. It is not a virus or a substitute for any malicious software.
api-ms-win-crt-multibyte-l1-1-0.dll was not found
The code execution cannot proceed because api-ms-win-crt-multibyte-l1-1-0.dll was not found
Failed to load api-ms-win-crt-multibyte-l1-1-0.dll
The procedure entry point ... could not be located in api-ms-win-crt-multibyte-l1-1-0.dll

1.
2a. 👉 Try to copy api-ms-win-crt-multibyte-l1-1-0.dll C:\Program Files\Your program\
2b. Also try to copy to bin, lib folders.
2c. Try to copy api-ms-win-crt-multibyte-l1-1-0.dll C:\Program Files (x86)\Your program\
👉 Prior to replacing the files, back them up.
How do I switch to the current Windows directory?
- Press and hold the key "win" on the keyboard and press the key "r" , then write %windir% and press the key Enter.
How to switch to the directory Program Files (x86) ?
- Press Win+R then enter %ProgramFiles(x86)% and after press Enter.

How to Fix Errors

Here are some steps you can take to resolve issues with this DLL file: - Reinstall the program that is causing the error. This will ensure all required files, including `api-ms-win-crt-multibyte-l1-1-0.dll`, are properly installed. - Update Windows to the latest version. This ensures compatibility and security updates. - Manually replace `api-ms-win-crt-multibyte-l1-1-0.dll` using a system file checker tool like SFC (System File Checker) or DISM (Deployment Image Servicing and Management).

FAQ

- Can I download `api-ms-win-crt-multibyte-l1-1-0.dll` from the internet? It is not recommended to download DLL files from unknown sources, as they could be malicious. Stick to official Microsoft channels.

Conclusion

The `api-ms-win-crt-multibyte-l1-1-0.dll` file is a crucial part of the Windows operating system that supports multibyte string operations. While it can cause errors if missing or corrupted, these issues are usually easy to resolve by reinstalling affected programs or updating your system.

The api-ms-win-crt-multibyte-l1-1-0.dll file is a core operating system component belonging to the Universal CRT (C Runtime) Library developed by Microsoft. This library provides necessary multibyte character string processing functions used by modern Windows applications and games built with Visual Studio.

Standard File Location

Depending on your Windows architecture, the file is safely located in the following system directories:

  • 64-bit systems (64-bit DLL): C:\Windows\System32\
  • 64-bit systems (32-bit compatibility DLL): C:\Windows\SysWOW64\
  • 32-bit systems: C:\Windows\System32\

How to Fix the Error Without Downloading the DLL From Third-Party Sites

Downloading standalone DLL files from unofficial websites poses severe security risks and rarely works because of complex dependencies. Use these built-in methods instead to safely repair or restore the file.

1. Repair the Microsoft Visual C++ Redistributable Package

The most common cause of this error is a corrupted or broken Visual C++ 2015–2022 Redistributable installation. You can trigger an internal repair without downloading any new files:

  1. Press Windows Key + R, type appwiz.cpl, and hit Enter to open Programs and Features.
  2. Scroll down and locate Microsoft Visual C++ 2015-2022 Redistributable (check both x86 and x64 variants if present).
  3. Click on the package and select Change.
  4. In the pop-up window, click Repair.
  5. Follow the prompts, restart your computer, and check if the error is resolved.

2. Run Windows System File Checker (SFC) and DISM

Windows includes automated repair tools capable of replacing missing or broken system-level files using a clean cached copy on your drive.

  1. Type cmd in the Windows Search bar, right-click Command Prompt, and select Run as administrator.
  2. Execute the deployment imaging command first:
    DISM.exe /Online /Cleanup-image /Restorehealth
  3. Once completed, run the system file scanner:
    sfc /scannow
  4. Restart your machine after the scan concludes to let Windows restore the file.

3. Copy the File from the Local "Downlevel" Cache

Windows frequently stores duplicate copies of Universal CRT components within an internal fallback cache. You can manually copy the file if it is missing from System32:

  1. Open File Explorer and navigate to: C:\Windows\System32\downlevel\
  2. Search for api-ms-win-crt-multibyte-l1-1-0.dll.
  3. Copy the file and paste it directly into your main C:\Windows\System32\ folder (or into the root installation folder of the specific program giving you the error).

If the error persists, please let me know which version of Windows you are currently running and the name of the program or game failing to launch so I can provide specialized instructions.

Other versions:
️ api-ms-win-crt-multibyte-l1-1-0.dll 10.0.17134.12 32-bit (x86)
Microsoft Corporation