Win8.1 Deployment .NET Framework 3.5 Installation Method

Windows 8.1 includes the .NET Framework. The .NET Framework 4.5.1 is installed by default during OS installation. If the program requires .NET Framework 3.5 support, the related features will be automatically enabled.
Note:
1. The .NET Framework 3.5 also supports building applications based on the .NET Framework 2.0/3.0/3.5.
2. Before installing the Windows Language Pack, you need to install .NET Framework 3.5 first.
3. The .NET Framework 3.5 no longer provides Windows CardSpace.
First, enable .NET Framework 3.5 on demand. If the program requires .NET Framework 3.5 support, the related functions will be automatically enabled.

Second, the control panel enables .NET Framework 3.5 Open the control panel, click “ Programs, select “ enable or disable Windows features, select Microsoft .NET Framework 3.5.

Note: Two sub-items apply to developers who need WCF scripts and handler mapping. No need for general users to choose.
The above two installation methods require an Internet connection. If you do not want to use an Internet connection, you can use the DISM (Deployment Image Service and Management Tools) to deploy the .NET Framework 3.5 offline. 1. Win+X selects the command prompt (admin) mode).
2. Load the installation image,
In this example, the installation image is loaded to the d drive, then the installation source is located at
d:sourcessxs,
enter the following command:
DISM
/Online< Br>/Enable-Feature
/FeatureName:NetFx3
/All
/LimitAccess
/Source:d:sourcessxs /Online
Specify enabling features in a running operating system
/Enable-Feature /FeatureName:NetFx3
Specify enable.
NET framework 3.5 /All
Enable all parent functions of .NET framework 3.5
/LimitAccess
Prevent DISM from connecting with Windows Update< Br>/Source
Specify where you want to enable features