https://www.microsoft.com/download/details.aspx?id=40772

Show you inside the Visual Studio Installer . Help you troubleshoot errors if the installation fails. Provide a link for the runtime-only version . Let me know which you need! Share public link

: Modern .NET handles web traffic and system memory significantly faster than .NET 4.5.

Microsoft no longer provides a standalone developer pack for the original .NET Framework 4.5. Support for .NET Framework 4.5 ended on January 12, 2016. For .NET Framework 4.5.2, 4.6, and 4.6.1, support ended on April 26, 2022. If you need to develop for .NET Framework 4.5 specifically, consider using the NuGet reference assemblies method described below.

A: The Runtime only lets you run apps. The Developer Pack lets you build (compile) apps. If you'd like, I can:

This is the most stable version of the 4.5 branch. You can find it at the Official Microsoft Download Center .

You must download and install the developer pack independently via the standalone Microsoft download links provided above. Once installed externally, Visual Studio 2022 will recognize the reference assemblies and allow you to build the project. 3. Build Server Failures (MSBuild)

Note: The .NET Framework 4.5 is an older runtime. It is highly recommended to download the latest servicing version, such as , which provides critical security updates and better stability. What is the .NET Framework 4.5 Developer Pack?

The .NET Framework has been a cornerstone of Windows development for nearly two decades. Among its many versions, .NET Framework 4.5 holds a special place—it introduced significant improvements in asynchronous programming (async/await), better performance in the just-in-time (JIT) compiler, and enhanced Windows Presentation Foundation (WPF) and Windows Forms functionality.

Official Microsoft Download Center

Understanding and Downloading the .NET Framework 4.5 Developer Pack

512 MB minimum (4 GB or more recommended for Visual Studio).