Developer Pack Link _top_ — Net Framework 45

C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5

If you already have Visual Studio 2017 or newer: net framework 45 developer pack link

Microsoft released several point updates: net framework 45 developer pack link

The .NET Framework 4.5 Developer Pack is a specialized software bundle designed for programmers to build and test applications targeting the .NET Framework 4.5. Official Download Links net framework 45 developer pack link