There is in DISM or Windows Setup for a .cab file. However, the term -Extra appears in community scripts, automation wrappers (e.g., SCCM, MDT, or custom PowerShell), and older documentation as a placeholder for:
Yes. For Windows Server Core (no GUI), the same CAB works, but you must manually start the Windows Installer service first. The command remains identical. Microsoft-windows-netfx3-ondemand-package.cab -Extra
Use the expand tool (built into Windows) or extrac32 : There is in DISM or Windows Setup for a
The story usually gets interesting when a user tries to install .NET 3.5 and hits a wall. Even with the automation wrappers (e.g.