: While it is an older version, it supports a wide range of operating systems from Windows 7 up to Windows Server 2012 (and beyond in compatibility modes). Developer Accessibility
It is highly recommended to download the runtime from official Microsoft sources to ensure file integrity and security.
The Microsoft Report Viewer is a freely distributable control that allows .NET applications to display reports designed using SQL Server Reporting Services (SSRS). and includes the core assemblies (e.g., Microsoft.ReportViewer.Common.dll , Microsoft.ReportViewer.WebForms.dll , and Microsoft.ReportViewer.WinForms.dll ). It supports both local processing (RDLC reports) and remote processing (SSRS reports) and integrates with both WinForms and ASP.NET WebForms applications. microsoft report viewer version 12.0.0.0 download
If you need to install the control on a client workspace or a web server where the application execution is failing, use the standalone runtime redistributable. Navigate to the official Microsoft Download Center.
To ensure a successful installation, you must install these components in order: Microsoft .NET Framework : Version 3.5 SP1 or 4.0 is required. Microsoft SQL Server System CLR Types : You must install the SQL Server 2014 Feature Pack version of SQLSysClrTypes.msi (available for x86 or x64) before the Report Viewer. Microsoft Support System Requirements : While it is an older version, it
The standalone Microsoft Report Viewer Runtime (MSI) has not been updated beyond Report Viewer 2015 Runtime . Extended support for the Microsoft Report Viewer Runtime 2015 ended on October 14, 2025 . For continued support and new features, Microsoft now provides the Report Viewer functionality exclusively through NuGet-based controls for WebForms and WinForms. When you use the NuGet packages in a new project, the required assemblies are shipped with your application, eliminating the need to install a separate runtime MSI on the client machine.
For internal LOB (Line of Business) applications behind a firewall, version 12.0.0.0 is still acceptable but should be isolated from untrusted inputs (e.g., avoid opening external RDLC files). and includes the core assemblies (e
"Could not load file or assembly 'Microsoft.ReportViewer.WebForm, Version=12.0.0.0...' or one of its dependencies."
: It allows developers to embed reporting functionality into Windows Forms and ASP.NET applications.