.NET Framework versions 2.0, 3.0, and 3.5 are built with the same version of the CLR (CLR 2.0). These versions represent successive layers of a single installation. Each version is built incrementally on top of the earlier versions. It's not possible to run versions 2.0, 3.0, and 3.5 side by side on a computer.

Determine which .NET Framework versions are installed Check the Release REG_DWORD value to determine the installed version. To be forward-compatible, check for a value greater than or equal to the value listed in the .NET Framework version table.. The following example checks the value of the Release entry in the registry to find the .NET Framework 4.5 and later versions that are installed:. using System; using Microsoft.Win32; public class Download .NET Framework Version 2.0 4.8 for Windows The .NET Framework version 2.0 improves scalability and performance of applications with improved caching, application deployment and updating with ClickOnce, support for the broadest array of browsers and devices with ASP.NET 2.0 controls and services. How to install Microsoft .NET Framework 3.5.1

Install .NET Framework 3.5 in Windows 10 | Tutorials

Old Version of Microsoft .NET Framework 3.5 SP1 Download

As with .NET Framework 3.0, version 3.5 uses Common Language Runtime (CLR) 2.0, that is, the same version as .NET Framework version 2.0. In addition, .NET Framework 3.5 also installs .NET Framework 2.0 SP1 and 3.0 SP1 (with the later 3.5 SP1 instead installing 2.0 SP2 and 3.0 SP2), which adds some methods and properties to the BCL classes in

The latest version (3.5) contains many new features building incrementally upon .NET Framework 2.0 and 3.0, and includes .NET Framework 2.0 service pack 1 and .NET Framework 3.0 service pack 1. Install the .NET Framework developer pack or Apr 10, 2018