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

  • PowerShell:
  • Windows Update / WSUS: automatic download and install when user or system requests the feature.
  • Group Policy / SCCM / Intune: deploy FoD CABs as packages or use servicing plans.

    • Here is the crucial truth: Microsoft does not officially publish a file named microsoft-windows-netfx3-ondemand-package.cab -Extra.

    If you see this filename, one of three things is true: Microsoft-windows-netfx3-ondemand-package.cab -Extra

    Published: June 2025 | Reading time: 4 minutes PowerShell:

    We’ve all been there. You try to install an older application (maybe a legacy ERP tool or a classic game) on Windows 10 or Windows 11. You get the dreaded prompt: "Your app needs .NET Framework 3.5." You click "Install," and Windows fails with error code 0x800F0906, 0x800F081F, or 0x800F0954. Windows Update / WSUS: automatic download and install

    So you search for a solution, and you stumble upon a file named microsoft-windows-netfx3-ondemand-package.cab. But then you see a variation: microsoft-windows-netfx3-ondemand-package.cab -Extra.

    What is that -Extra suffix? Is it a hack? A dangerous mod? Let’s clear the air.