Microsoftwindowsnetfx3ondemandpackagecab Download Server 2012 R2 New ✨ 🔥

Once you have the .cab file (typically 200–300 MB), copy it to your target server, e.g., C:\Temp\netfx3.cab.

Open PowerShell as Administrator (or an elevated Command Prompt) and run:

# Install from local CAB source
DISM /Online /Add-Package /PackagePath:C:\Temp\netfx3.cab /LimitAccess

Alternative using Source path: You can also point to the folder containing the CAB: Once you have the

# Specify the source folder (without needing to name the CAB directly)
Install-WindowsFeature -Name NET-Framework-Features -Source C:\Temp

Or using DISM with the source switch:

DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /Source:C:\Temp /LimitAccess

Install-WindowsFeature -Name NET-Framework-Features -Source "C:\Temp"

Note: PowerShell will scan the source path for the CAB automatically if properly named. Alternative using Source path: You can also point

Caution is paramount. Downloading system files from third-party websites poses significant security risks (malware, trojans, corrupted binaries). The only official sources for the microsoftwindowsnetfx3ondemandpackagecab for Server 2012 R2 are Microsoft properties.

Windows Server 2012 R2 does not include .NET Framework 3.5 full installation files by default. When you install or enable the .NET Framework 3.5 (which includes .NET 2.0 and 3.0), Windows tries to retrieve required files from Windows Update or from local installation media. The package commonly referenced for offline installations is named Microsoft-Windows-NetFx3-OnDemand-Package.cab. This article explains what that CAB is, why you might need it, and how to install .NET Framework 3.5 on Server 2012 R2 from local sources or a network share (without requiring direct internet access). Or using DISM with the source switch: DISM

The keyword "new" in your search is tricky. Microsoft no longer actively develops new feature cabs for Server 2012 R2 (mainstream support ended in 2018, extended support ends in 2023). A "new" cab simply refers to the latest cumulative version that includes servicing stack updates up to the last update rollup.

After installation completes (progress bar 100%), verify success:

Get-WindowsFeature -Name NetFx3 | Format-List InstallState

You should see: InstallState : Installed

Alternatively, check Registry: HKLM\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5 – the Version key should exist.