Download Microsoft .NET Framework 3.5 Service Pack 1 - Bộ
Download .NET (Linux, macOS, and Windows) Free downloads for building and running .NET apps on Linux, macOS, and Windows. Runtimes, SDKs, and developer packs for .NET Framework, .NET Core, and ASP.NET. Download Microsoft .NET Framework 3.5 Free Microsoft .NET Framework 3.5 Download Now! The .NET Framework is Microsoft's comprehensive and consistent programming model for building applications that have visually stunning user experiences, seamless and secure communication, and the ability to model a range of business processes.
Hi MMalone1 Unless you are running old software, you should not need to add the DotNet Framework 3.5 SP1 installed on your system . . . If you want to download and install that, you can get the from the link below:
Microsoft .NET Framework Repair Tool is available Nov 11, 2019
Microsoft .NET Framework 4.8 offline installer for Windows