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The .NET Framework 3.5 SP1 (also referred to as .NET Framework 3.5.1) is a prerequisite for SQL Server 2008. SQL Server 2008 Setup for standalone instance will install the .NET Framework 3.5 SP1 if it is not already installed. In Windows Server 2008 R2, the .NET Framework is a feature and installing it is different when compared to older versions of Windows Operating System. In previous versions, one could either download the .NET Framework 3.5.1 install binaries from Microsoft download site or use the install binaries from the redist folder of the SQL Server 2008 installation media. Starting with Windows Server 2008 R2, the method of installing .NET Framework 3.5.1 has changed. This document explains how to verify that .NET Framework 3.5.1 is installed and if it is not installed how you can add it.
Here are the steps to verify that .NET Framework 3.5.1 is installed on Windows Server 2008 R2.
- Click the Start button in the lower left hand corner of the display.
- Highlight Administrative Tools and select Server Manager.
- In the Server Manager interface, click Features to display all the installed Features in the right hand pane. Verify that .NET Framework 3.5.1 is listed.
If .NET Framework 3.5.1 feature is not listed, you can use either of the following methods to install it:
Method 1: Using Server Manager Interface
- In the Server Manager interface, select Add Features todisplays a list of possible features.
- In the Select Features interface, expand .NET Framework 3.5.1 Features.
- Once you expand .NET Framework 3.5.1 Features, you will see two check boxes. One for .NET Framework 3.5.1 and other for WCF Activation. Check the box next to .NET Framework 3.5.1 and click Next.
Note: If you do not expand .NET Framework 3.5.1 Features and check it, you will get a pop-up titled Add Features Wizard as shown below.
Click Cancel and expand .NET Framework 3.5.1 Features and then check .NET Framework 3.5.1 check box below it.
You cannot install .NET Framework 3.5.1 Features unless the required role services and features are also installed. - In the Confirm Installation Selections interface, review the selections and then click Install.
- Allow the installation process to complete and then click Close.
Method 2: Using PowerShell
- Click the Start button in the lower left hand corner of the display.
- Highlight All Programs and select Accessories
- Expand Windows PowerShell and right click Windows PowerShell and select Run as administrator. Click Yes on the User Account Control box.
- At the PowerShell command prompt, type the following commands, and then press ENTER after each command:
- Import-Module ServerManager
- Add-WindowsFeature as-net-framework
Note: A screenshot is shown below:
Anonymous
October 28, 2010
this works like a charm i made it in both ways and worked perfect thanks again best regardsAnonymous
December 24, 2010
Hi, is there any way to enable it, using a batchfile? i'm creating an install batch file, which installs SQL 2008, and .NET 3.5 on my servers. But some of the servers are under Windows 2008. installing .NET fails on them. What i have to do is what you said above. But I should do it using Batchfile. Would you please tell me how to do that?Anonymous
December 27, 2010
using System; using System.Diagnostics; namespace PrerequisiteHelper { class Program { static void Main(string[] args) { ProcessStartInfo startInfo = new ProcessStartInfo(); startInfo.FileName = "powershell.exe"; startInfo.Arguments = "Import-Module ServerManager ; Add-WindowsFeature as-net-framework"; startInfo.WindowStyle = ProcessWindowStyle.Hidden; startInfo.UseShellExecute = true; Process p = new Process(); p.StartInfo = startInfo; p.Start(); p.WaitForExit(); } } } source: community.flexerasoftware.com/.../index.phpAnonymous
December 30, 2010
From a batch file this should work: c:windowssystem32ServerManagerCmd.exe -i AS-Net-FrameworkAnonymous
January 19, 2011
these methods are not helping me out here. I am still only seeing the feature of .net 3.0. are there any other options to getting this feature available?Anonymous
February 09, 2011
After 2 hours I found this article. Thank you anyway. This has sorted my problems.Anonymous
February 23, 2011
How can I run above code if there is no .net installed on the machine :)Anonymous
April 06, 2011
what is the powershell install for .net 4? guessing it is similar to "Add-WindowsFeature as-net-framework" but different :)Anonymous
May 25, 2011
Sweet article. Simple step by step and direct to the point I've been trying to install a program into my new 2008 R2 server and it kept giving me issues becuase it can not initialize .net app. Removed new program and re-installed - working like a charm. Thanks!Anonymous
July 06, 2011
Hi, We are moving from dotnet server 2003 to Dotnet server 2008 R2. But find some issues like we didnt get the homepage images in dot server 2008 R2 environment. Can anyone help me on this issue?Anonymous
August 04, 2011
In my windows 2008 r2 it shows dot net framework 3.5.1 installed, But I couldn't see that in application pools. I did the powershell option but it wont help, the following output shows up Success Restart Needed ExitCode Feature Result ------- -------------- --------- ------------------ True No NoChan... <> any idea , thanks for your helpAnonymous
August 22, 2011
dism /online /enable-feature /featurename:NetFx3 or start /w ocsetup NetFx3Anonymous
September 12, 2011
Ok, this took me a while to figure out. I wanted to push this job out to my 2008R2 systems without enabling scripts or using an .exe. When I called powershell with a batch file it would run in 32x mode and fail. So with some googling and testing I was able to get the following to work. Create a vbs script using the code below. Then call it with cscript scriptname.vbs (I left the -noexit so I can tell if it ran or not - your mileage may vary) Set objShell = CreateObject("Wscript.Shell") objShell.Run("%windir%sysnativeWindowsPowerShellv1.0powershell.exe -noexit Import-Module ServerManager;Import-Module ServerManager")Anonymous
October 24, 2011
The comment has been removedAnonymous
January 26, 2012
Worked perfectly! Thanks, GeorgeAnonymous
May 06, 2012
I'v solved the problem,thanks a lot!Anonymous
June 11, 2012
Run the command prompt as an Administrator. Type the following command. It should install the .NET 3.5 SP1 powershell Import-Module ServerManager;Add-WindowsFeatures as-net-frameworkAnonymous
June 19, 2012
The comment has been removedAnonymous
July 03, 2012
plzz suggest me a dot net framwork package for windows starter 32 bit!! plzz mail me the details in vaish.1412@gmail.com...plzz i need help..coz i for JDBC im not able to connect sql server 2008 r2 express and netbeans..Anonymous
August 28, 2012
Loving that command lines! It is too easy. Thanks.Anonymous
August 31, 2012
How do I enable framework 4 when 3.5 is currently installed?Anonymous
September 11, 2012
Hi everyone, My name is Edward, I need a hand to the community, the thing is that I need to install a Web project Designed with MVC, which use the Framework meadow, detail is that I need to install it on Windows Server 2008, which should lift through iis7, where this and I have it set. I have everything you need (Prado, PHP, MySQL server, phpMyAdmin), just missing lift on the server where I try but I can not ... Greetings and thanks ...Anonymous
October 03, 2012
Most painless solution I found for Server 2008 R2 is, "ocsetup.exe NetFx3"Anonymous
October 28, 2012
Thanks for this little helpful post !Anonymous
November 07, 2012
you can uninstalled .net3.0 and 2.0 and install ItAnonymous
November 14, 2012
Thanks - your first sentence answered my question after looking through various forums where others were also confused by inconsistent naming conventions for ,net; many replies were from others thinking they knew the answer were just adding confusion: The .NET Framework 3.5 SP1 (also referred to as .NET Framework 3.5.1). ThanksAnonymous
February 26, 2013
Thanks - funny how such a 'simple' thing can stop the whole show!Anonymous
March 22, 2013
I am also facing the same problem . and when I check in server manager it shows 3.5 is already installed. But I run your command from command shell but problem is remain same. Please help me...Anonymous
April 29, 2013
The comment has been removedAnonymous
April 29, 2013
The comment has been removedAnonymous
June 10, 2013
Thanks for the detailed info...I solved the problem.Anonymous
August 19, 2013
Thanks a lot, it was very useful. Greetings from MexicoAnonymous
October 13, 2013
Installing a Windows language pack before installing the .NET Framework 3.5 will cause the .NET Framework 3.5 installation to fail. Install the .NET Framework 3.5 before installing any Windows language packs.Anonymous
October 22, 2013
hi can i update .net framework 3.5 to 4.5. if any one know please help meAnonymous
October 26, 2013
I'v solved the problem,thanks a lot!Anonymous
December 10, 2013
What does net framework 3.5 p1 do? Is it absolutely necessary?Anonymous
January 07, 2014
Hi, I have tried both suggested way, but: when I try trough server manage, at the end of the installation process, the system prompts that ita has been impossible to install all 3 services/roles required. If i try with PowerShell, I cannot import server manager module. Any clue on this? Thank youAnonymous
April 16, 2014
we upgrads the .netframework 3.5 to 4.0 in exchange server 2010 its impact to edge server 2010,2010 edge server support to .net framwork 4.0Anonymous
June 27, 2014
Hi, When I try to install SQL server 2008, a message appear that .net framework 3.5 installing failed and need to this not 3.5.1 and problem not solved. Any idea?Anonymous
July 20, 2014
Thank you !Anonymous
July 24, 2014
The comment has been removedAnonymous
August 30, 2014
Remot server is not found in the shell program??Anonymous
December 05, 2014
Same issue here Opie-wan, did you get this resolved?Anonymous
May 02, 2015
Excellent..... ahmsal1984 avhackerAnonymous
May 06, 2015
Powershell installation is very easy. Import-Module ServerManager Add-WindowsFeature as-net-framework will work on on session and time saving.Anonymous
January 23, 2016
i am proud of this instruction so thanksAnonymous
April 20, 2016
Thanks man. It's save my whole day. Installing .Net 3.5 solved the issue of 'system.serviceModel'. I used the app pole in .NET 2.0Anonymous
December 08, 2016
Thank you.Anonymous
February 14, 2017
thank u so muchAnonymous
February 28, 2017
Thanks a lot it was very simple method.Anonymous
April 01, 2017
The comment has been removed- Anonymous
April 05, 2017
Farhan, you are probably running the command in a 32bit/x86 PS prompt. Use a x64 and it will work.
- Anonymous
Anonymous
July 04, 2017
Boa tarde,Pessoal, estou com problemas em instalar o meu servidor web service com IIS ao tentar instalar o Net framework 3.5.1 pelo modo normal do Windows acontecem 2 evidencias com a offiline não abre e com a Web ele da um erro. Quando vou ate o Gerenciador de recursos e tento instalar ele aparece a caixa marcada mais não me da opção de de fazer nenhuma operação, com tudo tentei também a opção pelo Windows PowerShell e não obtive sucesso informa função ou serviço invalido, gostaria de saber se alguém poderia me ajudar.GratoAnonymous
September 26, 2017
Perfect! Works fine for me.I was trying to install the Management Studio for SQL Express when I got an error msg.Anonymous
October 24, 2017
The comment has been removedAnonymous
November 14, 2017
Hello thank you for helping you !!!!!Anonymous
December 01, 2017
thanksAnonymous
January 25, 2018
I did that and I get an install error on a brand new install. says I am missing source files- Anonymous
January 25, 2018
The comment has been removed
- Anonymous