If you need to silently install the .Net Framework 1.1 to multiple computers, you can follow these two simple steps.

1. Download the Microsoft .NET Framework Version 1.1 Redistributable Package (dotnetfx.exe)
2. Crete a Software Delivery Task or Deployment Server Distribute Software Task that runs dotnetfx.exe with the command line parameters: /q:a /c:"install /q"