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

To understand the .cab file, we first need to understand how Windows architecture has changed.

Applications built over a decade ago often rely on the specific libraries found in .NET 3.5. If you attempt to run such an app without it, you will likely see a popup stating, "An app on your PC needs the following Windows feature: .NET Framework 3.5 (includes .NET 2.0 and 3.0)". Where to Find the .cab File Microsoft-windows-netfx3-ondemand-package.cab -Extra

Disclaimer: This information is accurate for Windows 10 and 11 as of June 2026. To understand the

dism /online /enable-feature /featurename:NetFx3 /all /source:E:\sources\sxs /limitaccess Where to Find the

Q: What is the purpose of Microsoft-windows-netfx3-ondemand-package.cab? A: The package provides the .NET Framework 3.5, which is required for various applications and services to function properly on Windows operating systems.