Microsoft-windows-netfx3-ondemand-package.cab -extra [portable] <2024>

This two-step process first adds the package to the system's side-by-side store, then enables the feature itself.

When a machine lacks internet access, or when setting up servers via Group Policy/System Center Configuration Manager (SCCM), standard "Turn Windows Features on or off" methods may fail. This CAB file serves as the offline payload to enable the feature. Locating the File: Microsoft-windows-netfx3-ondemand-package.cab -Extra