It sounds like you want a feature or script that can extract the Microsoft-Windows-NetFx3-OnDemand-Package.cab file for free (i.e., without requiring a paid tool or full Windows ADK/ISO) and possibly make its contents usable for offline .NET Framework 3.5 installation.
If you are not running any old software that requires .NET 3.5, you can remove the package to free up space. microsoftwindowsnetfx3ondemandpackagecab extra free
If you often reinstall Windows, you can permanently add .NET 3.5 to your install.wim file using the same CAB: It sounds like you want a feature or
Keywords: microsoft-windows-netfx3-on-demand-package.cab, .NET Framework 3.5 offline installer, DISM add package, Windows feature on demand free download, install netfx3 without internet. (like 0x800F0906 or 0x800F081F) that occur when Windows
(like 0x800F0906 or 0x800F081F) that occur when Windows Update fails to fetch the files. Deployment automation via scripts or SCCM/MDT. Johnson Controls Performance & Compatibility Installing from the
To install .NET Framework 3.5 using this CAB file, you must use the Deployment Image Servicing and Management (DISM) tool via an elevated Command Prompt.
Better PowerShell (native):