The microsoft-windows-netfx3-ondemand-package.cab file is a Feature on Demand (FOD) package used to install .NET Framework 3.5 (which includes .NET 2.0 and 3.0) on Windows 10, Windows 11, and Windows Server. 1. Official Download Methods
To install it, open Command Prompt as Administrator and run:Dism /online /enable-feature /featurename:NetFX3 /All /Source:D:\sources\sxs /LimitAccess Method 3: Official Microsoft Download Center microsoftwindowsnetfx3ondemandpackagecab download free link
If you have internet access and just need .NET 3.5, you can download the standard installers directly from the Microsoft Download Center: The microsoft-windows-netfx3-ondemand-package
Click OK and select Let Windows Update download the files for you. Method 2: Using Your Windows ISO (No Internet Needed) Going to Control Panel > Programs and Features
