Unlike the classic framework, modern .NET versions are often "self-contained," meaning an app can carry the runtime with it, or you can download the full .NET 5.0 Desktop Runtime for offline use. Why an Offline Installer?
Modern, cross-platform apps that run on Windows, Linux, and macOS.
Running older Windows applications (WPF, Windows Forms) built before 2016.
This is a component of the original Windows-only framework. It is an "in-place" update, meaning it replaces previous 4.x versions (like 4.0 or 4.5) on your system.
Released in November 2020, this version was intended to unify .NET Core and .NET Framework.
If you are looking for an offline installer, you likely need either the (a common legacy version) or the modern .NET 5.0 SDK/Runtime . Understanding the Versions
Because "5.2" is not a standard release, you are likely looking for one of these two things: 1. Microsoft .NET Framework 4.5.2 (Legacy)