top of page

Download [top] Server 2012 R2 New - Microsoftwindowsnetfx3ondemandpackagecab

Installing .NET Framework 3.5 on Windows Server 2012 R2 Installing .NET Framework 3.5 on Windows Server 2012 R2 is a common requirement for running legacy applications, but it often encounters errors like 0x800F0906 or 0x800F081F because the necessary source files are not included in the default installation image to save space.

In many enterprise environments, Server 2012 R2 instances are isolated from the internet (Air-Gapped). Attempting to enable the feature via the Server Manager GUI or standard PowerShell commands without a source path typically results in Error: 0x800F0906 or 0x800F081F, indicating the source files could not be found. Installation Methodology Installing

  1. Keep a Local Repository: Create a network share \\fileserver\fod\server2012r2\ that contains the Microsoft-Windows-NetFx3-OnDemand-Package.cab. Configure Group Policy to point all servers to this share.
  2. Deploy via Configuration Manager (SCCM): If using System Center, create an application deployment for .NET 3.5 using the .cab file. Use the detection method reg query "HKLM\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5" /v Install (value should equal 1).
  3. Plan for End of Support: Windows Server 2012 R2 reaches End of Extended Support on October 10, 2023. While .NET 3.5 will still function, consider migrating legacy applications to containers or newer servers with compatibility layers.
  4. Automate with PowerShell DSC: Use the WindowsFeature DSC resource to ensure .NET 3.5 is present on all new builds using your .cab source.

The Deployment Image Servicing and Management (DISM) tool is the most reliable method for injecting the CAB package:dism /online /enable-feature /featurename:NetFX3 /all /Source:D:\sources\sxs /LimitAccess Keep a Local Repository: Create a network share

How to Acquire the microsoft-windows-netfx3-ondemand-package.cab The Deployment Image Servicing and Management (DISM) tool

To install .NET Framework 3.5 Windows Server 2012 R2 microsoft-windows-netfx3-ondemand-package.cab

  • It should show “Installed”.
bottom of page