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Download the file directly from the official Microsoft Download Center . The file is typically named vcredist_x64.exe . Run Installer: Double-click the downloaded .exe file.
"Runtime Error! Program: C:... This application has requested the Runtime to terminate it in an unusual way." Key Features and Supported Libraries
"The application has failed to start because its side-by-side configuration is incorrect." How to Install It Safely
Without the correct runtime, you may see errors such as: This public link is valid for 7 days
The package installs runtime components of the following libraries, many of which are placed in the Windows side-by-side assembly cache (WinSxS folder):
The package installs several essential C++ libraries into the Windows assembly folder ( WinSxS ). These include:
: Despite its age, Microsoft has issued security updates as recently as July 2024 to address critical vulnerabilities like DLL planting in MFC applications. Interesting "Quirks" & Installation Tips
Use a tool like (depends.com) or Process Explorer to see which running processes have loaded msvcr90.dll . If you are unsure, leave the package installed. The disk space usage (approx 8-12 MB for x64) is negligible on modern drives. Can’t copy the link right now
"The application has failed to start because its side-by-side configuration is incorrect."
Different programs might deploy slightly different security update revisions of the 2008 runtime. Windows often preserves these separate builds to prevent "DLL Hell"—a conflict where updating a library for one program inadvertently breaks another program that relies on a specific older build version. Common Errors Associated with the 2008 Runtime
If you open your Windows Control Panel or Settings app and look at your installed programs, you will likely see multiple versions of the Microsoft Visual C++ Redistributable spanning from 2005 to 2022.
You might wonder why Windows needs so many versions, and why it keeps the 2008 version around. 1. Application Dependency The file is typically named vcredist_x64
Type appwiz.cpl and press to open Programs and Features . Scroll down to the "M" section.
Only download redistributable packages from official Microsoft sources. Third-party "DLL download" sites often distribute malware or outdated versions.
| Library | Description | | :--- | :--- | | | Standard C library functions (I/O, string, math) | | Standard C++ | ISO C++ standard library (iostreams, STL containers, algorithms) | | ATL (Active Template Library) | C++ templates for COM components and ActiveX controls | | MFC (Microsoft Foundation Class Library) | C++ classes for building Windows applications | | OpenMP | Multi-platform shared memory parallel programming API | | MSDIA (Debug Interface Access) | Library for accessing debug information in program database (PDB) files |