Microsoft Report Viewer Version 12.0.0.0 Download May 2026

Q: Is version 12.0.0.0 the same as Report Viewer 2015? A: Yes. Version 12.0.0.0 is the runtime version number for the product marketed as “Microsoft Report Viewer 2015 Runtime.”

Q: Can I use version 12.0.0.0 with .NET Framework 4.8? A: Yes, .NET Framework 4.8 maintains backward compatibility with 4.5+ assemblies. However, Microsoft has not formally tested this combination. In most cases, it works fine.

Q: Does Microsoft Report Viewer 12.0.0.0 support Chrome or Firefox? A: For ASP.NET WebForms, the default viewer uses legacy ActiveX for printing. Modern browsers may require the HTML5 Renderer which is available in later versions (14.0+). For version 12.0.0.0, consider using SSRS Server mode or third-party rendering.

Q: I’m getting a “Report Viewer Version 12 not found” error on a server. Help! A: Ensure you installed the x86 version if your IIS application pool is set to 32-bit mode. Also, deploy the assemblies locally in the app’s bin folder if you cannot install to the GAC.

Version 12.0.0.0 corresponds to Report Viewer 2015 (runtime version 12.0). It supports: microsoft report viewer version 12.0.0.0 download

⚠️ Official download: Microsoft no longer offers Report Viewer 12.0.0.0 as a standalone download. It is typically installed via NuGet packages or Microsoft Report Viewer 2015 Runtime (if still accessible via MSDN/Volume Licensing).

If you need the latest stable version, consider Report Viewer 2022 Runtime (v15.x) – available on Microsoft’s official download center.

Version 12.0.0.0 is also included in the Microsoft SQL Server 2016 Feature Pack under “Microsoft Report Viewer for SQL Server 2016”.

Critical Warning: Only download Microsoft Report Viewer from official Microsoft sources. Third-party websites may bundle malware, adware, or modified DLLs that compromise security. Q: Is version 12

After installation, confirm that version 12.0.0.0 is correctly registered.

Important: You cannot download version 12.0.0.0 as a standalone .msi from a generic “download page” in 2025+. Instead, Microsoft distributes it via:

If you are reading this article, you are likely staring at an error message on a production server or wrestling with a legacy application migration. The error usually looks something like this:

"Could not load file or assembly 'Microsoft.ReportViewer.WebForm, Version=12.0.0.0...' or one of its dependencies." Version 12

Microsoft Report Viewer Version 12.0.0.0 is the version of the Report Viewer Runtime specifically designed for Microsoft SQL Server 2014. It is a common dependency for older .NET applications (WebForms and WinForms) that utilize RDLC reports (Client-side reporting) or connect to SQL Server Reporting Services (SSRS).

Because this version is tied to a specific SQL Server cycle, finding the correct installer can be tricky. This guide will help you locate the legitimate download, install it correctly, and troubleshoot common issues.

Even after installing the runtime, developers often face configuration headaches. Here are the top three issues related to Version 12.0.0.0 and how to fix them.