Net Framework 45 Developer Pack Link ^new^ Jun 2026

The following official links lead to the Microsoft Download Center for the different iterations of the 4.5 series:

Maintaining older frameworks is vital for businesses relying on deeply embedded Windows Presentation Foundation (WPF) desktop clients, Windows Communication Foundation (WCF) backend services, and large-scale ASP.NET MVC architectures. By using the Developer Pack, you can safely apply security patches, debug existing codebases, and maintain the software's lifecycle without forcing expensive and time-consuming code rewrites. Best Practices for Installation

Windows 7 Service Pack 1, Windows 8, Windows 8.1, Windows Server 2008 R2 SP1, and Windows Server 2012. Modern Windows 10 and 11 environments can also install it via Visual Studio backwards-compatibility components.

⚠️ Note: The .NET Framework 4.5 Developer Pack is no longer directly linked as a separate download on newer pages. On the page above, look for under version 4.5. Alternatively, a direct download link (still valid from Microsoft’s CDN) is: net framework 45 developer pack link

Includes specialized command-line tools, headers, and compilers used by build engines like MSBuild. Key Features Introduced in .NET 4.5

Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2008 R2 SP1, or Windows Server 2012.

The actual execution engine required to run the application on your local development machine. The following official links lead to the Microsoft

Note: The Developer Pack often includes the corresponding runtime update as well. .NET Framework 4.5 Developer Pack Download Links (Official)

Open the project properties or look at the framework framework selection dropdown menu.

If you installed the pack but still cannot target 4.5 in Visual Studio: Modern Windows 10 and 11 environments can also

Given that .NET Framework 4.5 reached end-of-support in January 2016, the best practice for new development and for maintaining existing applications is to upgrade:

Follow these steps to successfully install the developer pack on your system. Step 1: Pre-installation Checks Close all open instances of Visual Studio.