How to check ASP NET Version loaded on a system

Question

How can I check the version of ASP NET that is installed on my system

User · Answer

I needed this information too and got information with this method,

Launch PowerShell

run the 'import-module servermanager' command ( without quotes )

after that for asp.net 3.5 check run the 'get-windowsfeature web-asp-net' command ( without quotes )

for asp.net 4.5 check run the 'get-windowsfeature Net-Framework-45-Core' command ( without quotes )

Both of the commands will inform you below Install State header.

Detecting version via GUI in server environment and details can be found in this link.

User · Answer

You can use   lt   Response Write  Version      System Environment Version ToString       gt    That will get the currently running version  You can check the registry for all installed versions at      HKEY LOCAL MACHINE SOFTWARE Microsoft NET   Framework Setup NDP

User · Answer

Here is some code that will return the installed  NET details    lt    Page Language  VB  Debug  true    gt   lt    Import namespace  System    gt   lt    Import namespace  System IO    gt   lt    Dim cmnNETver  cmnNETdiv  aspNETver  aspNETdiv As Object Dim winOSver  cmnNETfix  aspNETfil 2   aspNETtxt 2   aspNETpth 2   aspNETfix 2  As String  winOSver   Environment OSVersion ToString cmnNETver   Environment Version ToString cmnNETdiv   cmnNETver Split      cmnNETfix    v   amp  cmnNETdiv 0   amp       amp  cmnNETdiv 1   amp       amp  cmnNETdiv 2   For filndx As Integer   0 To 2   aspNETfil 0     ngen exe    aspNETfil 1     clr dll    aspNETfil 2     KernelBase dll     If filndx   2        aspNETpth filndx    Path Combine Environment GetFolderPath Environment SpecialFolder System   aspNETfil filndx     Else     aspNETpth filndx    Path Combine Environment GetFolderPath Environment SpecialFolder Windows    Microsoft NET Framework64   cmnNETfix  aspNETfil filndx     End If    If File Exists aspNETpth filndx   Then     aspNETver   Diagnostics FileVersionInfo GetVersionInfo aspNETpth filndx       aspNETtxt filndx    aspNETver FileVersion ToString     aspNETdiv   aspNETtxt filndx  Split          aspNETfix filndx    aspNETdiv 0    Else     aspNETfix filndx     Path not found    No version found       End If Next  Response Write  Common MS NET Version  raw      amp  cmnNETver  amp    lt br gt    Response Write  Common MS NET path     amp  cmnNETfix  amp    lt br gt    Response Write  Microsoft NET full path     amp  aspNETpth 0   amp    lt br gt    Response Write  Microsoft NET Version  raw      amp  aspNETtxt 0   amp    lt br gt    Response Write   lt b gt Microsoft NET Version     amp  aspNETfix 0   amp    lt  b gt  lt br gt    Response Write  ASP NET full path     amp  aspNETpth 1   amp    lt br gt    Response Write  ASP NET Version  raw      amp  aspNETtxt 1   amp    lt br gt    Response Write   lt b gt ASP NET Version     amp  aspNETfix 1   amp    lt  b gt  lt br gt    Response Write  OS Version  system      amp  winOSver  amp    lt br gt    Response Write  OS Version full path     amp  aspNETpth 2   amp    lt br gt    Response Write  OS Version  raw      amp  aspNETtxt 2   amp    lt br gt    Response Write   lt b gt OS Version     amp  aspNETfix 2   amp    lt  b gt  lt br gt      gt    Here is the new output  cleaner code  more output   Common MS NET Version  raw   4 0 30319 42000 Common MS NET path  v4 0 30319 Microsoft NET full path  C  Windows Microsoft NET Framework64 v4 0 30319 ngen exe Microsoft NET Version  raw   4 6 1586 0 built by  NETFXREL2 Microsoft NET Version  4 6 1586 0 ASP NET full path  C  Windows Microsoft NET Framework64 v4 0 30319 clr dll ASP NET Version  raw   4 7 2110 0 built by  NET47REL1LAST ASP NET Version  4 7 2110 0 OS Version  system   Microsoft Windows NT 10 0 14393 0 OS Version full path  C  Windows system32 KernelBase dll OS Version  raw   10 0 14393 1715  rs1 release inmarket 170906-1810  OS Version  10 0 14393 1715

User · Answer

Look in c  windows Microsoft NET Framework and you will see various folders starting with  v  indicating the versions of  NET installed

User · Answer

Alternatively  you can create a button on your webpage and in the Page Load type   Trace IsEnabled   True   And in the button click event type   Response Write Trace    This will bring up all the trace information and you will find your ASP NET version in the  Response Headers Collection  under  X-ASPNet-Version

User · Answer

I had same problem to find a way to check whether ASP NET 4 5 is on the Server  Because v4 5 is in place replace to v4 0  if you look at c  windows Microsoft NET Framework  you will not see v4 5 folder  Actually there is a simple way to see the version installed in the machine  Under Windows Server 2008 or Windows 7  just go to control panel -  Programs and Features  you will find  Microsoft  NET Framework 4 5  if it is installed

User · Answer

open a new command prompt and run the following command  dotnet --info

User · Answer

You can see which version gets executed when you load the page with Google Chrome   developer tools  preinstalled  or Firefox   Firebug  add-on     I use Google Chrome    Open Chrome and use Ctrl Shift I to open the developer tools  Go to the  Network  Tab Click on the small button at the bottom  Preserve log upon Navigation  Load any of your pages Click on the response header   It looks like this

[asp.net] How to check ASP.NET Version loaded on a system?

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