Link |top|: Net Framework 45 Developer Pack

for cross-platform support, significantly better performance, and access to modern language features

Check out .NET 4.8 Developer Pack .

Here is the direct download link and information for the .

The installs the .NET Framework runtime (for testing and debugging) plus the multi-targeting pack containing reference assemblies needed to build applications for that specific framework version. As noted in the documentation, "Developers can build applications targeting the .NET Framework 4.5.1 using either Visual Studio 2012 or third-party IDEs". net framework 45 developer pack link

Make sure you have installed runtime first if needed, though the dev pack includes it for development purposes.

Thus, the Developer Pack is essential for:

The .NET Framework ecosystem includes several distinct distributions: As noted in the documentation, "Developers can build

Log into your Windows operating system with an Administrator account. Step 2: Run the Installer

Check the box for .NET Framework 4.5 Targeting Pack (or Developer Pack).

This 198.6 MB file (NDP451-KB2861696-x86-x64-DevPack.exe) installs the multi-targeting pack for .NET Framework 4.5.1. Step 2: Run the Installer Check the box for

If you have an active internet connection and Visual Studio 2017 or newer, you do not need to hunt for a separate . You can use the Visual Studio Installer:

Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2008 R2 SP1, Windows Server 2012 1 GHz or faster 32-bit (x86) or 64-bit (x64) processor RAM 512 MB minimum (1 GB or more recommended) Hard Disk Space

Microsoft provides a helpful resource at https://aka.ms/msbuild/developerpacks for downloading Developer Packs

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)

If you only install the Runtime, you can run .NET 4.5 applications on your PC, but Visual Studio will throw an error stating that the target framework is missing when you try to compile code. Step-by-Step Installation Guide