All versions of the .NET Framework from 4.5 up to 4.6.1 have reached their official end of life due to outdated security standards (specifically reliance on the SHA-1 signing algorithm). For current security patches and stability, it is strongly recommended that you upgrade your projects to target at least .NET Framework 4.8 or later.
Right-click the downloaded .exe (e.g., NDP452-DevPack-KB2901983-x86-x64-ENU.exe ) and select . net framework 45 developer pack link
Provides the hover-over documentation and code completion hints you see while typing in Visual Studio. All versions of the
Obtaining and installing
The is the crucial component for developers. It contains the reference assemblies (the DLL files) that Visual Studio uses when you compile your code. Without the Targeting Pack, Visual Studio doesn't know what APIs are available in version 4.5, and your build will fail. Without the Targeting Pack, Visual Studio doesn't know
Contents and relationship to other packages