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
: Used for building applications targeting version 4.5.2. Redistributable (Runtime Only) net framework 45 developer pack link
The following "Developer Packs" include the runtime, the multi-targeting pack (for building apps), and language packs: the multi-targeting pack (for building apps)
Here is the official, verified :