the dotnetfx35.exe file to your Windows XP machine using a USB drive. Run the installer.
If you need a .NET environment to run older applications on Windows XP Service Pack 2, you should install the . This version is a cumulative update that includes all previous versions, such as .NET 2.0 and 3.0. Why You Can't Find ".NET Framework 3.1" Download Net Framework 3.1 For Windows Xp Sp2 Offline