The solution? The . Instead of pulling bits from Microsoft's server during installation, you provide the source files locally.
: Provides support for Windows Communication Foundation (WCF) HTTP and Non-HTTP Activation. Standalone Full Package
You can download the official, full redistributable package directly from Microsoft .
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
Use the DISM method above with a valid Windows installation media source. The source files could not be found.
dotnetfx35.exe /quiet /norestart
However, the use of the .NET Framework 3.5 SP1 offline installer is not without its challenges. As operating systems have evolved, Microsoft has changed how they handle legacy frameworks. On Windows 10 and 11, simply running the legacy offline executable can sometimes fail, prompting the user to use the Deployment Image Servicing and Management (DISM) command-line tool to point to the Windows installation media (specifically the sources\sxs folder). This evolution has created a nuanced landscape where the term "offline installer" can refer to either the legacy standalone executable or the source files required for DISM. Nevertheless, the principle remains the same: the ability to install without reliance on the live Windows Update pipeline is essential.
In the modern world of Windows 11 and Windows 10, we often take for granted that legacy software will "just work." However, millions of users and IT professionals regularly hit a frustrating roadblock: an outdated application, a classic video game, or an enterprise ERP system demands (SP1).
0689D8BAC9E63B945FB0B7FAB96319F61C42610A Size: 231.5 MB
Instead, modern versions of Windows include the required .NET 3.5 files directly on your installation media (or recovery partition) and use built-in deployment tools to install them without needing to download anything.