Vc2013redistx86 Visual C 2013 X86 120 40664 Hot! May 2026

Demystifying vc2013redistx86: The Complete Guide to Visual C++ 2013 x86 (12.0.40664)

If you have spent any time troubleshooting Windows application errors, installing legacy games, or setting up enterprise software, you have likely encountered a cryptic file name: vc2013redistx86 or the more detailed identifier Visual C++ 2013 x86 – 12.0.40664. This seemingly obscure string of characters is actually one of the most critical components for running thousands of Windows applications smoothly.

In this comprehensive guide, we will unpack everything you need to know: what it is, why version 12.0.40664 matters, how to fix installation errors, and best practices for deployment.

Frequently Asked Questions

Q: My system is 64-bit. Why do I need the x86 version? A: Many applications (especially older ones) are compiled as 32-bit executables. They require the 32-bit runtime regardless of the host OS architecture.

Q: Can I just copy msvcr120.dll to System32? A: No. The redistributable registers side-by-side assemblies (WinSxS). Manual DLL placement breaks Windows’ internal versioning and can cause DLL hell. vc2013redistx86 visual c 2013 x86 120 40664

Q: Why does the installer keep failing with a 0x80070643 error? A: This is often a Windows Installer service corruption. Re-register MSI: msiexec /unreg then msiexec /regserver.

Q: How do I completely remove all traces of VC++ 2013 x86? A: Use the Microsoft msizap.exe (part of Windows SDK) carefully, or use Revo Uninstaller. Then delete any leftover %windir%\WinSxS\ folders referencing vcruntime120.

Conclusion: The Unsung Hero of Windows Compatibility

The string vc2013redistx86 visual c 2013 x86 120 40664 may be long and technical, but it represents a essential piece of Windows infrastructure. Millions of applications—from enterprise CRM tools to beloved PC games—depend on this exact runtime. Features

By ensuring you have the correct x86 build 12.0.40664 installed, you prevent “missing DLL” errors, improve system stability, and close known security vulnerabilities. Always download from official Microsoft sources, verify the file version, and keep it updated.

Next time you see a cryptic redistributable error, you’ll know exactly what it means—and how to fix it.

Features

• Detect installed versions via registry (HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall and UninstallString) and Win32 APIs.
• Compare installed version to target 12.0.40664 and display status: Up-to-date / Older / Not installed / Corrupted.
• Download verifier: compare local installer checksum (SHA256) against known value; optionally download official redistributable from Microsoft if missing.
• Install flow:
  • GUI and CLI options.
  • Run official installer with /install /quiet /norestart flags for silent mode.
  • Verify post-install registry entries and DLL file versions.
• Repair flow:
  • Invoke installer with /repair or run Windows Installer repair.
  • Re-register runtimes if necessary.
• Uninstall flow:
  • Invoke uninstall string or msiexec with product code; support silent uninstall.
• DLL verification:
  • Check presence and file version of msvcr120.dll, msvcp120.dll, concrt140? (note: for 2015+), report mismatches.
• Logging and rollback:
  • Detailed log file for install/repair/uninstall.
  • Create a restore point before changes (if permitted).
• Admin features:
  • MSI/EXE packaging for SCCM/Intune deployment.
  • Exit codes for scripting: 0=success, 1=already up-to-date, 2=install failed, 3=repair failed, 4=uninstall failed, 5=download failed.
• Safety:
  • Validate digital signature of downloaded installer.
  • Prompt before uninstall; require admin elevation.

Method 3: Repair Corrupted Installation

If the redistributable is already present but corrupted: 142) will not work.

• Control Panel → Programs and Features → Find “Microsoft Visual C++ 2013 Redistributable (x86)” → Right-click → Change → Repair.

vc2013redistx86 vs. Other VC++ Versions

A common source of confusion is that Windows may require multiple side-by-side VC++ runtimes. They are not cumulative. You need:

• VC++ 2005 (x86/x64)
• VC++ 2008
• VC++ 2010
• VC++ 2012
• VC++ 2013 (x86 and x64)
• VC++ 2015-2022 (combined runtime)

Thus, vc2013redistx86 co-exists peacefully with vc2015redistx86. Do not uninstall older versions thinking the newest covers them.

The Ultimate Guide to vc2013redistx86 (Visual C++ 2013 x86 – Version 12.0.40664)

Method 3: Extracting DLLs Manually (Not Recommended)

Some tutorials suggest extracting msvcr120.dll and msvcp120.dll into the application folder. This is not a substitute for proper installation, as it bypasses side-by-side assembly registration and can lead to security vulnerabilities.

Q3: Can I use a newer redist (2015-2022) instead of 2013?

No. Redistributables are not backward compatible. A program compiled with Visual C++ 2013 expects runtime version 120. Newer ones (140, 141, 142) will not work.