Net Framework 45 Developer Pack Link
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".
The .NET Framework 4.5 Developer Pack supports the following Windows versions:
The primary official resource for all .NET Framework versions is the Microsoft Learn installation guide, which provides links for installing all versions of .NET Framework from 4.5 to 4.8.1:
Follow these steps to successfully integrate the .NET 4.5 targeting pack into modern development workflows. Step 1: Download the Installer net framework 45 developer pack link
Right-click the downloaded file and select Run as Administrator .
This is the highly recommended alternative. Version 4.5.2 is a highly compatible, in-place update to 4.5, 4.5.1, and 4.5.2.
Tools, headers, and libraries for compiling applications. The installs the
4.5 is reaching end-of-support on many modern Windows versions; consider upgrading to 4.6.2 or 4.8 if your project allows.
Unlike the "Runtime" version, which only allows a machine to apps, the Developer Pack includes: The Runtime : Core files needed to execute applications. Multi-Targeting Pack
Follow the on-screen prompts, accept the Microsoft Software License Terms, and wait for the extraction and installation progress bars to finish. Step 4: Restart Your Machine Step 1: Download the Installer Right-click the downloaded
and accept the license terms
Follow these steps to successfully install the developer pack on your system. Step 1: Pre-installation Checks Close all open instances of Visual Studio.