UNSOLVED
Install .NET framework 3.5 offline (really offline) without internet access
some old apps need .NET 2.0 and 3.0
You can use DISM: Deployment Image Servicing and Management (DISM) to add .NET Framework 3.5 and provide access to the \sources\SxS folder on the installation media to an installation of Windows that is not connected to the Internet.
prerequisite:
- Installation media
- Administrator user rights.
Open a command prompt with administrator user rights (Run as Administrator).
To install .NET Framework 3.5 from installation media located on the D: drive, use the following command:
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:d:\sources\sxs
(edited)
well I tried the above command line but kept getting DISM does not recognize command line option of Source:d:\sources\sxs.
(I forgot to add a / in front of Source)
so try this:
copy paste the microsoft-windows-netfx3-ondemand-package~31bf3856ad364e35~amd64~~.cab in the D:/sources/sxs folder to C:\ which is root path of C: drive
dism /online /enable-feature /featurename:netfx3 /all /source:c:\ /limitaccess
(edited)
redxps630
11 Legend
•
16308 Posts
•
82821 Points
0
0
Posted June 4th, 2026 16:00
Microsoft .NET Framework 3.5 service pack 1 is a cumulative update that contains many new features building incrementally upon .NET Framework 2.0, 3.0, 3.5, and includes .NET Framework 2.0 service pack 2 and .NET Framework 3.0 service pack 2 cumulative updates.
Download Microsoft .NET Framework 3.5 Service pack 1 (Full Package) from Official Microsoft Download Center
direct DL link https://download.microsoft.com/download/2/0/e/20e90413-712f-438c-988e-fdaa79a8ac3d/dotnetfx35.exe