Net Framework 45 Developer Pack Link -

For developers working with legacy applications, custom Windows enterprise software, or maintaining established codebases, the correct tooling is non-negotiable. If you need to build, compile, or target legacy applications natively, the is the essential toolkit required for the job.

While Microsoft has shifted its primary focus to modern .NET (versions 5 through 9+), maintaining and compiling older enterprise applications still requires these specific target packs. Direct Download Links and Availability net framework 45 developer pack link

If you need to install the package on a machine without internet access or are using an older development environment, you can use these direct Microsoft download links: For developers working with legacy applications