If you see an error stating "The application has failed to start because its side-by-side configuration is incorrect," it generally means that a runtime library is missing or damaged.
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.
Service Pack 1, which includes critical stability and security updates. Why Do You Need It?
"The application has failed to start because its side-by-side configuration is incorrect."
Visual Studio 2008 (Version 9.0) Service Pack 1 If you see an error stating "The application
Choose vcredist_x64.exe for 64-bit applications on 64-bit Windows. Run Installer: Run the downloaded executable file.
By following this structured approach, you can methodically isolate and resolve the issue, successfully installing the necessary runtime environment and allowing your desired application to run.
This specific "SP1" version often includes critical security updates, such as the MFC Security Update which patches vulnerabilities in the Microsoft Foundation Class Library. Installation Guide
Legacy database tools, older ERP modules, and server applications. Run Installer: Double-click the downloaded
The installer rolls back, throwing "Error 1935. An error occurred during the installation of assembly component."
A security issue was identified in older versions of this package that could allow an attacker to compromise your system. It is vital to ensure you are installing the version (v9.0.30729.6161 or higher), which includes necessary security patches. Troubleshooting: "Side-by-Side Configuration Incorrect"
Because managing independent installers for 2005, 2008, 2012, and onward can be tedious, many reputable community developers maintain "All-in-One" Visual C++ Redistributable runtime packages. These packages compile every version of the x86 and x64 runtimes into a single executable script that completely cleans out broken keys, updates all versions to their secure baselines, and ensures seamless backwards compatibility.
Despite its simple purpose, installing this package is frequently fraught with errors, particularly on modern Windows 10 and Windows 11 systems. The most common of these is the dreaded "Error 1935." "The application has failed to start because its
The (x64) in the package name specifically denotes that this version is designed for (such as Windows XP Professional x64 Edition, Vista, 7, 8, 10, and 11). It installs the 64-bit versions of the runtime DLLs to support 64-bit applications. A separate (x86) version exists for 32-bit systems.
She ran the installer.
While installing it can be frustrating, especially when encountering Error 1935 on modern Windows versions, the solutions are well-documented. By systematically working through the troubleshooting steps—cleaning the system, adjusting compatibility settings, and disabling security software—you can overcome these hurdles. For IT professionals, understanding its silent installation parameters is essential for creating robust deployment scripts.
If you open your Windows Control Panel (or the Settings App) and navigate to / Installed Apps , you will likely see a long list of various Microsoft Visual C++ Redistributables ranging from version 2005 up to 2022. You might even see multiple listings for the 2008 version.