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api-ms-win-crt-string-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: Runtime
File size: 24.9 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-string-l1-1-0.dll

Publisher: Microsoft Corporation
Issuer: Microsoft Code Signing PCA
Encryption algorithm: SHA1
Time stamp: Apr 5 06:03:58 2018 GMT

The api-ms-win-crt-string-l1-1-0.dll file is a Dynamic Link Library (DLL) for Microsoft Windows. DLLs are shared libraries that contain code and resources that can be used by multiple programs simultaneously to improve system performance and reduce redundancy.

MD5: 164762af38fa89a7acbfdf4a2f0f1583
SHA-1: 0edb2c34cdc3a7a3cdbdeeefe96a1672cf0b06f4
SHA-256: 4a3cf6aa840b3b6d82bbce8916eb116594047eb3ee568603c28ab6218dd1faab

Where it is used

This file is part of the Microsoft C Runtime Library (CRT) and is commonly used in various Windows applications. It contains functions for string manipulation, such as isascii, iscsym, and others. This DLL ensures that these essential string operations are available to a wide range of programs without needing to duplicate the code.

Errors related to api-ms-win-crt-string-l1-1-0.dll

You might encounter errors like:

  • Error: "api-ms-win-crt-string-l1-1-0.dll not found"
  • Error: "missing api-ms-win-crt-string-l1-1-0.dll"
  • Error: "error loading api-ms-win-crt-string-l1-1-0.dll"

These errors can occur when the file is missing, corrupted, or not properly installed on your system. This might result in applications failing to start or run correctly.

File security

The api-ms-win-crt-string-l1-1-0.dll is generally safe and part of the Windows operating system. However, if you encounter a version that does not match your installed version of Windows, it could indicate an issue or possibly even a security threat. Always verify the source before downloading any replacement files.

api-ms-win-crt-string-l1-1-0.dll was not found
The code execution cannot proceed because api-ms-win-crt-string-l1-1-0.dll was not found
Failed to load api-ms-win-crt-string-l1-1-0.dll
The procedure entry point ... could not be located in api-ms-win-crt-string-l1-1-0.dll

1.
2a. 👉 Try to copy api-ms-win-crt-string-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-string-l1-1-0.dll C:\Program Files (x86)\Your program\
👉 Do not replace the files without first making backups.
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

To resolve issues with this file:

  1. Reinstall the program: Sometimes, reinstalling the application that requires this DLL can fix the issue.
  2. Update Windows: Ensure your system is up to date. Windows updates often include important fixes and security patches.
  3. Manually replace api-ms-win-crt-string-l1-1-0.dll (if needed): If the above steps do not work, you can manually replace the file with a known good version from another system or Microsoft's official download page. However, proceed with caution to avoid potential security risks.

FAQ

Q: Can I safely replace api-ms-win-crt-string-l1-1-0.dll?

A: Yes, but only if you have a verified version. Manually replacing system files can be risky and should not be attempted unless necessary.

Q: How do I know if the file is safe?

A: Verify the MD5 hash of the file against known good values or download it from a trusted source like Microsoft's official site.

Conclusion

The api-ms-win-crt-string-l1-1-0.dll is an essential part of the Windows environment. Ensure it remains intact and properly updated to avoid application issues. If you encounter errors, consider updating your system or reinstalling affected applications.


File Description and Error Fix: api-ms-win-crt-string-l1-1-0.dll

File Description

The api-ms-win-crt-string-l1-1-0.dll file is a dynamic link library file. It is a core component of the Microsoft Visual C++ Redistributable for Visual Studio 2015.

  • Function: It handles string manipulation functions for applications built using C++.
  • Dependency: It belongs to the Universal CRT (C Runtime), which ensures compatibility between Windows desktop applications and the Windows operating system.

Standard File Locations

On a healthy Windows system, this file is located in the following standard system directories:

  • For 64-bit Windows:
    • 64-bit file path: C:\Windows\System32\api-ms-win-crt-string-l1-1-0.dll
    • 32-bit file path: C:\Windows\SysWOW64\api-ms-win-crt-string-l1-1-0.dll
  • For 32-bit Windows:
    • 32-bit file path: C:\Windows\System32\api-ms-win-crt-string-l1-1-0.dll

How to Fix the Error Without Downloading the DLL File

Downloading individual .dll files from third-party websites is risky and often leads to malware infections or version mismatch errors. Use these official built-in Windows methods to repair the file instead.

Method 1: Repair the Visual C++ 2015-2022 Redistributable

This is the most effective fix, as it restores missing or corrupted C++ runtime libraries natively.

  1. Press the Windows Key + R to open the Run dialog box.
  2. Type appwiz.cpl and press Enter to open Programs and Features.
  3. Scroll through the list to find Microsoft Visual C++ 2015-2022 Redistributable (or Visual C++ 2015).
  4. Right-click on it and select Change.
  5. Click the Repair button in the pop-up window.
  6. Follow the on-screen prompts, then restart your computer.

Method 2: Run the System File Checker (SFC) Scan

Windows has a built-in utility that scans system files and replaces corrupted or missing ones using an internal cached copy.

  1. Press the Windows Key, type cmd, and select Run as administrator.
  2. Type the following command and press Enter: sfc /scannow
  3. Wait for the verification to reach 100%.
  4. If it finds corrupt files, Windows will automatically fix them. Restart your PC afterward.

Method 3: Run the DISM Tool

If the SFC scan cannot fix the file because the local source copy is broken, the Deployment Image Servicing and Management (DISM) tool will fetch clean components from Windows Update.

  1. Open Command Prompt as administrator (same as Method 2).
  2. Type the following command and press Enter: DISM /Online /Cleanup-Image /RestoreHealth
  3. Once completed, re-run the sfc /scannow command from Method 2 to finalize the repair.

Method 4: Install Pending Windows Updates

The Universal CRT framework is often delivered via official Windows updates.

  1. Open Settings (Windows Key + I).
  2. Go to Update & Security (or Windows Update).
  3. Click Check for updates.
  4. Install all critical and optional updates, then restart your device.

Other versions:
️ api-ms-win-crt-string-l1-1-0.dll 10.0.19041.685 32-bit (x86)
Microsoft Corporation