Install Telnet Client in Operating System

Install Telnet Client by using a command line

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On Windows 7, Windows Server 2008 R2, Windows Server 2008 or Windows Vista you can use the following command line procedure to install Telnet Client.

To install Telnet Client by using a command line

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1. Open a command prompt window. Click Start, type cmd in the Start Search box, and then press ENTER.
   
2. Type the following command:
   
   pkgmgr /iu:"TelnetClient"
   

3. If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue.
   
4. When the command prompt appears again, the installation is complete.
   
   
   On Windows Server 2008, you can use the Role Management tool to install optional components.
   

   To install Telnet Client on Windows Server 2008 R2 or Windows Server 2008

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   1. Start Server Manager. Click Start, right-click Computer, and then click Manage.
      
   2. If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue.
      
   3. In the Features Summary section, click Add features.
      
   4. In the Add Features Wizard, select Telnet Client, and then click Next.
      
   5. On the Confirm Installation Options page, click Install.
      
   6. When installation finishes, on the Installation Results page, click Close.
      
   
   
   Telnet is a simple but extremely popular protocol for exchanging data between two computers. It is often used for testing computer programs and the Telnet utility is included with Vista, Windows 7 and Windows 8 computers as well though it is not enabled by default.
   
   

   How to Install Telnet in Windows

   If you would like to use the Telnet command from the DOS (command) prompt, follow these steps to re-enable the Telnet client on your Windows machine:
   
5. Go to Control Panel – > Programs and Features.
6. Click Turn Windows Features on or off.
7. Enable Telnet Client and click OK.

That’s it. Open the command prompt, type telnet to make sure it works.

1. 
   

Windows 8: Enable .NET Framework 3.5 (includes .NET 2.0 and 3.0)

 i.e. (NetFx3) feature in Online & Offline mode!

Obviously the first step for us is to check the Program and Features to enable any available additional features in an Operating System. This is what you see in your Control Panel –> Program and Features. Click on Turn Windows features on or off. 

Here you can see .NET Framework as a feature and by default the feature is disabled. You can enable this particular right away using this GUI Tool but in order to do that you need to be connected to internet i.e. Online Mode. Other way is using DISM Command and this can be done in an Offline Mode using Windows 8 installation media. Let’s see these 2 methods.

Method 1: When you are Online, connected to Internet.

In order to install the following window click on the .NET Framework 3.5 (included .NET 2.0 and 3.0) select it & click OK

Now, it will download the entire package from the internet & install the .NET Framework feature.

Method 2: When you are Offline and not connected to Internet

If you open CMD.EXE with Administrative Privileges i.e. at elevated level & run the this DISM command dism /online /get-features you will see that from the State that .NET Framework is not part of the Operating System.

So the first thing you need to do is to copy the required package to local machine before you run the command to install .NET Framework. To do that use Windows 8 ISO/DVD/USB Media. You need to copy SXS folder to local machine located at D:\sources\sxs (In this case D: your drive letter on which you have loaded Windows 8 Media)

You can also use the following command to copy this folder locally. xcopy d:\sxs\*.* c:\sxs /s

Once completed, in order to install this feature you can run the following command dism /online /enable-feature /featurename:NetFx3 /All /SourceC:\sxs /LimitAccess  and hit Enter

After completing the installation of .NET Framework 3.5 you can see that the feature is enabled in the Control Panel –> Program and Features

Bingo. Now you can enable .NET Framework feature on Windows 8 without needing of an internet connection.

Enjoy