Microsoft Visual C 2008 Sp1 Redistributable Package X64 Updated -

Subject: Fix for "Side-by-Side Configuration" Errors (VC++ 2008 SP1 x64)

Getting errors trying to launch that classic game or older mod tool? You probably need the updated Microsoft Visual C++ 2008 SP1 Redistributable (x64).

A lot of game installers skip this specific version, or the installed version becomes corrupted. If your game crashes on startup with a generic error, download and install this package to replace the missing runtime files.

Download: [Insert Link Here]

Pro Tip: It's safe to have multiple Visual C++ Redistributables installed (2005, 2008, 2010, etc.) at the same time. Don't delete the old ones!

#PCGaming #TechTips #Windows #Troubleshooting


While Windows can handle multiple side-by-side versions (e.g., 2005, 2008, 2010, 2012…), installing an older copy over a newer one can break things. Always aim for the latest service pack + security update of the 2008 x64 redistributable.

For most users today:
If you run modern Windows 10 or 11, the system likely already includes the updated version via cumulative updates. Only reinstall it if a legacy program explicitly complains.

Even the “updated” x64 package sometimes fails. Here are the most frequent issues:

| Error Code | Likely Cause | Solution | |------------|--------------|----------| | 0x80070666 | A newer version of VC++ 2008 is already installed (contradictory but possible). | Uninstall all VC++ 2008 entries (both x86 and x64) via a cleanup tool. | | Error 1935 | Windows Installer corruption or .NET Framework issues. | Run sfc /scannow in an elevated command prompt, then install the latest Windows Update. | | 0x80240017 | The installer is too old for your Windows version. | Ensure you have the updated (6161) version, not the RTM. | | Side-by-side error persists after install | Windows has cached the missing DLL error. | Run the application as admin once, or restart your PC. | | “Another version is already installed” | The x86 version is present, but you’re trying to install x64 – that’s fine. But if the exact same x64 version appears, you don’t need to proceed. | Check your installed programs list. | While Windows can handle multiple side-by-side versions (e

The Microsoft Visual C++ 2008 SP1 Redistributable Package (x64) updated is not something you interact with directly, but it’s a silent backbone for countless applications. Keeping the correct updated version installed ensures stability, security, and compatibility—especially for older yet critical 64-bit software.

Action step: Check your installed programs now. If you see an outdated 9.0.30729.x version, download the official 9.0.30729.6161 from Microsoft and update it.


Need help with other Visual C++ redistributables (2005, 2010, 2012–2022)? Refer to Microsoft’s official documentation or the VC++ Redistributable Runtime matrix.

The Microsoft Visual C++ 2008 SP1 Redistributable Package (x64) Updated is a critical software component required to run 64-bit applications developed with Visual Studio 2008 Service Pack 1. Though the base version was released years ago, it remains essential for modern systems to maintain compatibility with legacy software and games. What is this Package?

This redistributable installs runtime components of Visual C++ Libraries, such as C Runtime (CRT), Standard C++, ATL, MFC, OpenMP, and MSDIA. These libraries are provided as shared code (often appearing as .dll files like msvcr90.dll) so that developers don't have to bundle them with every individual app. The "Updated" Version: Security & Fixes

The package is frequently referenced as "updated" due to critical security patches released by Microsoft to address vulnerabilities:

MFC Security Update (KB2538243): This is the most significant update, published to resolve a vulnerability where Microsoft Foundation Class (MFC) applications did not specify full paths to system DLLs, potentially allowing "DLL planting" attacks.

ATL Security Update: Addresses issues that could allow an attacker to compromise a Windows system through vulnerabilities in the Active Template Library (ATL).

Version Details: The latest build is typically identified as v9.0.30729.6161. Why You Need It Need help with other Visual C++ redistributables (2005,

Microsoft Visual C++ 2008 SP1 Redistributable Package (x64) is a foundational system component that allows 64-bit applications built with Visual C++ 2008 to run on your computer. While legacy software, it remains a critical "behind-the-scenes" tool for maintaining compatibility with older games and professional software. Core Benefits

The Essential Update: Microsoft Visual C++ 2008 SP1 Redistributable (x64)

If you’ve recently seen a prompt for a "Security Update for Microsoft Visual C++ 2008 Service Pack 1," you might be wondering why software from over a decade ago still needs your attention. This package is a critical bridge that allows modern 64-bit Windows systems to run older applications and games developed with Visual Studio 2008. Why This Update Matters Today

Even on Windows 10 or 11, many programs—from legacy enterprise tools to classic PC games—rely on specific "runtime components" found only in the 2008 SP1 package.

Vulnerability Protection: The primary reason for the latest update (specifically KB2538243) is to patch security flaws in the Microsoft Foundation Class (MFC) Library. Without this fix, attackers could potentially exploit "DLL planting" vulnerabilities to gain control of your system.

Fixing Runtime Errors: If you encounter "Side-by-Side configuration" errors or missing .dll messages (like msvcr90.dll), it usually means this package is either missing or corrupted.

Not Cumulative: Unlike some software, newer versions (like 2022) do not replace the 2008 version. Applications built for 2008 must have the 2008 libraries installed to function. Compatibility and Support

Microsoft Visual C++ 2008 Service Pack 1 (SP1) Redistributable Package (x64)

provides the runtime components of Visual C++ libraries required to run 64-bit applications developed with Visual C++ 2008 SP1 on computers that do not have the full Visual Studio 2008 installed. such as C Runtime (CRT)

While Visual Studio 2008 officially reached the end of extended support on April 10, 2018

, Microsoft has continued to release specific security updates to address critical vulnerabilities. Microsoft Learn Latest Updates and Versions

As of July 15, 2024, the primary "updated" versions of the 2008 SP1 Redistributable are security patches designed to protect against system-level compromises. MFC Security Update (KB2538243):

This is the most recent critical update, addressing a vulnerability in the Microsoft Foundation Class (MFC) library where DLL planting could occur. ATL Security Update (KB973552):

A security fix that prevents attackers from gaining control of a Windows-based system running the package. Final Version Number: The package version for these updates is generally 9.0.30729.xxxx

(with .6161 being a common final build for the security update). Key Specifications Latest Supported Visual C++ Redistributable Downloads


Historically, Microsoft distributed this via KB articles. The most reliable direct reference is KB2973201 (which supersedes older updates). Use Microsoft’s search to find the official KB and within it, the x64 download link.

Sometimes the updated package refuses to install. Common fixes:

| Error | Solution | |-------|----------| | “Another version is already installed” | Uninstall the existing VC++ 2008 x64 via Control Panel, then install the updated one. | | “Error 1935” | Run sfc /scannow in an admin command prompt, then try again. | | “Installation doesn’t start” | Ensure Windows Installer service is running. Disable antivirus temporarily. |

Although not always required, a restart clears any locked files and ensures all applications detect the new runtimes.