: Inject the framework into custom Windows images using tools like NTLite . How to Obtain the File
This cabinet (.cab) file contains the necessary binary files to enable .NET 2.0 and 3.0 alongside 3.5. It is primarily used by system administrators to:
You should see State : Enabled .
: Directly downloading and installing .NET Framework 3.5 from Microsoft's official website can sometimes resolve issues. Ensure you download it from a trusted source to avoid malware. Microsoft-windows-netfx3-ondemand-package.cab Download
IT professionals often need to inject .NET 3.5 into a Windows image (WIM or VHD) before deployment. Here is how to do it:
Even with the correct .cab file, you may encounter errors. Here are the most frequent issues and their solutions.
Many older applications, games, and development tools require Microsoft .NET Framework 3.5 to function correctly. While newer Windows versions (10 and 11) come with .NET 4.x or 5/6/7, they often need to "on-demand" install the older 3.5 version. When this installation fails—commonly displaying error codes like 0x800F0906 , 0x800F081F , or 0x800F0907 —the solution is to manually download and install the file. : Inject the framework into custom Windows images
Open the , type cmd , right-click it, and select Run as Administrator .
Once your Windows Installation ISO is mounted to your system (for example, as drive letter E: ), the offline installer package is located in a specific directory.
Move the downloaded .cab file to a simple directory, like C:\netfx3\ . Open the Windows Start Menu. : Directly downloading and installing
This is a very common error in corporate environments when a WSUS server is configured. The solution is to force the system to bypass the WSUS server by temporarily modifying the Group Policy.
This is the most robust method, as DISM works even when Windows Features UI fails.