All Users: Check to See If You Have the .NET Framework Installed
You can check to see if you already have the .NET Framework 1.1 installed by clicking Start on your Windows desktop, selecting Control Panel, and then double-clicking the Add or Remove Programs icon. When that window appears, scroll through the list of applications. If you see Microsoft .NET Framework 1.1 listed, the latest version is already installed and you do not need to install it again.
Note: Non-developers need to install the .NET Framework 1.1 to run applications developed using the .NET Framework 1.1.
In most cases, the creator of an application will alert you if you need to install the .NET Framework 1.1 Redistributable to run the application.
:siren: You need to install the .NET Framework 1.1 Redistributable to run the application. :siren:
However, with the number of .NET Framework-connected applications on the market growing rapidly, we encourage you to install the latest version of the .NET Framework 1.1 Redistributable if you haven’t already.
General Users: Install Through Windows Update
If you only want to run applications built using the .NET Framework 1.1, download the .NET Framework 1.1 from Microsoft Windows Update.