12.0.0.0 ((exclusive)) Download: Microsoft Report Viewer Version

Run the following command for Web Forms applications: Install-Package Microsoft.ReportingServices.ReportViewerControl.WebForms -Version 12.0.2402.15

Install-Package Microsoft.ReportViewer.WinForms -Version 12.0.2402.15 Use code with caution. Or, run this command for the WebForms version:

| Error / Problem | Likely Cause | Solution | | :--- | :--- | :--- | | for Microsoft.ReportViewer.Common or other version 12.0.0.0 assemblies when running the application. | The required Report Viewer assemblies are missing from the GAC (if using MSI) or from the application's bin folder (if using NuGet). | If using the MSI installer, verify that the Report Viewer 2015 Runtime and the SQL Server System CLR Types (SQL Server 2014) are properly installed. If using NuGet, ensure the packages are correctly installed and that the Copy Local property of the referenced DLLs is set to True . The assemblies should be present in your project's output directory. | | The installation of ReportViewer.msi fails or does nothing on Windows Server 2008/2012. | The Report Viewer 2015 Runtime MSI is not compatible with certain older server operating systems, or there is a version mismatch (e.g., a 64-bit installer on a 32-bit OS). | This is a known issue. The standalone MSI is not officially supported on Windows Server 2008. A reliable workaround is to switch to using the NuGet packages for your project and deploy the assemblies with your application instead of relying on a system-wide installation. | | Could not load file or assembly Microsoft.ReportViewer.Common, Version=12.0.0.0 in IIS. | The application's pool in IIS may be running in a mode or under an account that cannot access the installed assemblies, or the necessary prerequisites are missing. | First, ensure you have installed both the SQL Server System CLR Types and the Report Viewer 2015 Runtime on the server. Second, check if your IIS application pool is running in 32-bit mode; if so, you may need to install the 32-bit versions of the prerequisites or change the pool to 64-bit. | | The Report Viewer control is not visible in the Visual Studio Toolbox after installing the MSI. | Visual Studio might not have refreshed its toolbox items, or the Report Viewer assemblies were not correctly registered. | Ensure that you have closed and reopened Visual Studio after the installation. If the control is still missing, you can manually add it: right-click the Toolbox, select "Choose Items...", click "Browse", navigate to the Microsoft.ReportViewer.WinForms.dll (typically located in C:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WinForms\12.0.0.0__89845dcd8080cc91\ or similar), select it, and ensure the control is checked in the list. | microsoft report viewer version 12.0.0.0 download

2. "The Report Viewer Web Control HTTP Handler has not been registered"

Ensure both SQLSysClrTypes.msi and ReportViewer.msi have been run successfully. Alternatively, change the properties of the Report Viewer references within Visual Studio to Copy Local = True . This copies the necessary DLLs directly into your application's /bin output folder, bypassing the need to install the software on every client machine. Missing Toolbox Controls in Visual Studio Run the following command for Web Forms applications:

Search for or use the direct download link if provided by your application administrator.

Supports both Client Report Definition ( .rdlc ) and Server Report Definition ( .rdl ) files. | If using the MSI installer, verify that

Before installing the version 12 runtime, ensure your environment has the following components: : Typically requires version 4.0 or higher.