Net Framework 3.5 Sp1 Offline Installer | Instant ✪ |

The .NET Framework is a software framework developed by Microsoft that provides a large library of pre-built functionality, known as the .NET Framework Class Library, and a virtual execution environment, known as the Common Language Runtime (CLR). The .NET Framework 3.5 SP1 is a service pack for the .NET Framework 3.5, which includes several new features and improvements.