The CAB file is not generally available as a standalone download on Microsoft's main site. Instead, it is located on the (ISO or USB drive) for Windows 10/11. Insert or mount your Windows 10/11 installation media. Navigate to the following folder: \sources\sxs
Once the CAB file is ready, you can install it. You must have .
Inside this folder, look for the file named: microsoft-windows-netfx3-ondemand-package~31bf3856ad364e35~amd64~~.cab (or ~x86~~.cab for 32-bit systems). cab file for .net framework 3.5
Locate the file named microsoft-windows-netfx3-ondemand-package...cab . Copy this file to a local directory (e.g., C:\netfx3\ ). Installing .NET Framework 3.5 via DISM
How to Download and Install the CAB File for .NET Framework 3.5 The CAB file is not generally available as
In this post, we’ll show you how to locate the correct CAB file for .NET Framework 3.5 and how to install it manually using DISM.
Configure a GPO to change the default path specifying where Windows looks to install optional features. Direct the policy path to a shared network folder containing the verified .cab file payload. Navigate to the following folder: \sources\sxs Once the
⚠️ Ensure you download the specific CAB file that matches your Windows build architecture (x64 or x86) and version (e.g., Windows 10 vs. Windows 11). Using a CAB file from a mismatched Windows version can cause system corruption.
Installing .NET Framework 3.5 on modern Windows operating systems can sometimes be a frustrating experience. When using the standard Windows Features menu, the system attempts to download the necessary files from Windows Update. If your machine is offline, operating in a secured corporate network, or suffering from Windows Update glitches, the installation will fail with error codes like 0x800F0906, 0x800F0954, or 0x800F081F.
The .NET Framework 3.5 CAB file remains an indispensable tool for IT administrators and power users managing offline or restricted Windows workstations. By extracting this package from standard installation media and utilizing the DISM tool, you bypass Windows Update entirely—saving time, conserving bandwidth, and keeping legacy business applications running flawlessly.