The is a cabinet file used to manually install .NET Framework 3.5 on Windows systems (specifically Windows 10, 11, and Windows Server). This package is essential for running older applications that require the 3.5, 3.0, or 2.0 frameworks, which are no longer included in the base Windows installation by default. Key Overview
This post is written for IT pros, system administrators, and advanced Windows users who encounter errors when trying to install .NET Framework 3.5. Microsoft-windows-netfx3-ondemand-package.cab -Extra
Here is the standard command:
The story usually gets interesting when a user tries to install .NET 3.5 and hits a wall. Even with the The is a cabinet file used to manually install
To avoid the "-Extra" headache across 100+ machines: or 2.0 frameworks