The single most common reason you need this package is when you install a 64-bit program that was compiled with Visual C++ 2015. Here are typical scenarios:
Never download vcruntime140.dll or any system DLL from a “DLL download” website. These files can be outdated, malicious, or incorrect. Always obtain redistributable packages directly from Microsoft’s official download center.
Instead of hunting specifically for the 2015 version, it is best practice to download and install the latest supported Visual C++ Redistributable (currently Visual Studio 2022). This ensures you have the latest security updates and bug fixes while maintaining full compatibility with 2015 software. microsoft visual c 2015 redistributable x64
The Microsoft Visual C++ 2015 Redistributable (x64) is a package of shared library files (DLLs) required to run 64-bit applications developed with Visual Studio 2015. Without these libraries, many games and professional software packages will fail to launch, often returning errors like "MSVCP140.dll is missing". Core Purpose and Functionality
Run-time Components: It installs essential components for libraries such as C Runtime (CRT), Standard C++, MFC, C++ AMP, and OpenMP. The single most common reason you need this
Dependency Management: Developers use these libraries to avoid rewriting common code (like math or file I/O functions) for every app. Instead, they link to these shared files.
Standalone Execution: It allows users to run C++ applications on systems that do not have the full Visual Studio development suite installed. Instead of hunting specifically for the 2015 version,
Version Specificity: While modern packages (2015–2022) are often cumulative and backward compatible, some older applications still specifically require the 2015 version. System Requirements
Visual C++ Redistributable for Visual Studio 2015 - Microsoft