By having the .cab file locally, you can force Windows to install the feature without needing an internet connection.
If your environment favors PowerShell scripts, you can use the Add-WindowsCapability or Add-WindowsFeature equivalents.
Microsoft does not provide this .cab file as a standalone download on their website for most consumers. Instead, you get it from:
Systems that cannot access Windows Update for features. Microsoft-windows-netfx3-ondemand-package.cab Download
The file is the official offline installer package used to deploy .NET Framework 3.5 (which includes .NET 2.0 and 3.0) on Windows 10, Windows 11, and Windows Server editions. Understanding the NetFx3 CAB Package
You must run commands as an Administrator. Where to Find the .cab File (Inside the ISO)
: Once you mount the ISO, navigate to the \sources\sxs\ folder. By having the
Guide you through setting up an official Windows ISO.
The feature associated with that package is .
The file is the official offline installer package used to deploy .NET Framework 3.5 (which includes .NET 2.0 and 3.0) on Windows 10, Windows 11, and Windows Server operating systems. Instead, you get it from: Systems that cannot
Replace D: with your actual mounted ISO drive letter.
Get-WindowsOptionalFeature -Online -FeatureName NetFx3
Once the DISM utility finishes processing and displays "The operation completed successfully," you can confirm the installation is active. Open the Run dialog box by pressing . Type optionalfeatures and press Enter .
The file is an offline installation package used to install .NET Framework 3.5 (which includes .NET 2.0 and 3.0) on Windows 11, Windows 10, and Windows Server without requiring an active internet connection.
: Specifies that you want to activate the .NET Framework 3.5 architecture.