Is this for a or a network deployment via SCCM/MDT ? Share public link
Never download this file from untrusted third-party websites, as doing so introduces severe security and malware risks. The safest and most reliable way to obtain the verified CAB package is directly from official installation media. Microsoft-windows-netfx3-ondemand-package.cab -Extra
Installing the Microsoft-Windows-NetFx3-OnDemand-Package.cab with the -Extra Parameter Is this for a or a network deployment via SCCM/MDT
Windows incorporates a feature system known as . Unlike standard software installers, FOD components are not fully installed by default to conserve local disk storage space. Instead, they exist as metadata stubs that point to Microsoft Update servers. Installing the Microsoft-Windows-NetFx3-OnDemand-Package
While most modern apps use .NET 4.8 or .NET 6+, many older enterprise applications, legacy drivers, and specialized software still require version 3.5 to function. If your computer lacks an active internet connection to download it from Windows Update, you must use this file to enable the feature manually. Microsoft Learn How to Use the CAB Package
Because on forums and file-sharing sites, you often see mislabeled files like:
Here's a potential feature related to "Microsoft-windows-netfx3-ondemand-package.cab -Extra":