While Windows Server 2012 R2 is a legacy operating system, .NET 3.5 remains a critical dependency for many enterprise applications. Utilizing the microsoft-windows-netfx3-ondemand-package.cab via DISM remains the "Gold Standard" for ensuring a clean, offline installation on new server deployments.
DISM.exe /online /enable-feature /featurename:NetFX3 /All /Source:C:\dotnet35 /LimitAccess Use code with caution. Copied to clipboard /LimitAccess flag is critical; it tells Windows While Windows Server 2012 R2 is a legacy operating system,
By default, Windows Server 2012 R2 does not include the .NET Framework 3.0. If you try to install an application that requires the .NET Framework 3.0, you may encounter an error message indicating that the .NET Framework 3.0 is not installed. Copied to clipboard /LimitAccess flag is critical; it
Value 0x1 = installed.
DISM.exe /Online /Enable-Feature /FeatureName:NetFX3 /All /Source:C:\NetFx3 /LimitAccess Use code with caution. Copied to clipboard /Source : Points to the folder containing the .cab file. it tells Windows By default