Microsoft-windows-netfx3-ondemand-package.cab -extra -

Or by adding the package directly: DISM /Online /Add-Package /PackagePath:C:\path\to\microsoft-windows-netfx3-ondemand-package.cab . Key Technical Details

The file Microsoft-Windows-NetFx3-OnDemand-Package.cab is a cabinet file provided by Microsoft that contains as an optional feature for modern Windows operating systems (Windows 8, 10, 11, Server 2012+). It is part of the Features on Demand (FOD) mechanism, allowing administrators to install legacy .NET versions without requiring an internet connection. Microsoft-windows-netfx3-ondemand-package.cab -Extra

This .cab file is typically found within the \sources\sxs directory of a Windows installation ISO. It is essential for environments with limited or no internet access, where Windows cannot download the necessary files from Windows Update. Or by adding the package directly: DISM /Online

dism /online /enable-feature /featurename:NetFx3 /all /limitaccess /source:C:\Sources Use code with caution. Copied to clipboard : Enables all parent features of the specified feature. Copied to clipboard : Enables all parent features