Run the following command, replacing D: with the drive letter of your Windows Installation Media: Dism /online /enable-feature /featurename:NetFx3 /All /Source:D:\sources\sxs /LimitAccess Johnson Controls . Summary Table Recommendation Standalone 2.0 x64 Installer Download directly from Microsoft. Windows 10 / 11 Enable .NET 3.5 Feature Use Windows Features ( optionalfeatures ). Air-gapped PC (Win 10/11) DISM + ISO Media
| Attribute | Value | |-----------|-------| | | 2.0 Service Pack 2 (SP2) | | Architecture | x64 (64-bit) | | File Name | NetFx20SP2_x64.exe | | File Size | ~53 MB | | Standalone | Yes – no web download required during install | | Includes | .NET Framework 2.0 SP2 + 3.0 SP2 + 3.5 SP1 (cumulative) | net framework 20 offline installer 64bit