HKLM\SOFTWARE\Microsoft\VisualStudio\12.0\VC\Runtimes\x64 Key value: Installed = 1

vcredist_x64.exe /passive /norestart | Code | Meaning | |------|---------| | 0 | Success | | 1638 | Already installed (same or higher version) | | 3010 | Success – reboot required | 4.3 Detection of Installation (Registry Key) Check existence of:

| File Name | Description | |-----------|-------------| | msvcr120.dll | C Runtime Library (CRT) | | msvcp120.dll | C++ Standard Library | | msvcr120_clr0400.dll | Mixed-mode CRT for .NET 4.0 | | vcomp120.dll | OpenMP Parallelization Library | | concrt140.dll | Concurrency Runtime (shared with VS 2015+ but versioned for 2013) | : Unlike newer redistributables (2015–2022), the 2013 version does not use a universal CRT architecture. Each major VS version before 2015 had its own isolated runtime. 4. Installation & Deployment 4.1 Silent Installation (for IT/DevOps) To install without user interaction: