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Further diagnostics below: 
 
(Get-ItemProperty &quot;HKLM:Software\Microsoft\NET Framework Setup\NDP\v4\Full&quot;).Version 
 
Result 
4.6.01055 &nbsp;= 4.6.1 
 
 
Get-WindowsFeature 
 
[X] Web Server (IIS) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Server &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; [X] Web Server &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-WebServer &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; [X] Common HTTP Features &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Common-Http &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Default Document &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Default-Doc &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [ ] Directory Browsing &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Dir-Browsing &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Available 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] HTTP Errors &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-Http-Errors &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Static Content &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Static-Content &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] HTTP Redirection &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Http-Redirect &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [ ] WebDAV Publishing &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-DAV-Publishing &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Available 
&nbsp; &nbsp; &nbsp; &nbsp; [X] Health and Diagnostics &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Health &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] HTTP Logging &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Http-Logging &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Custom Logging &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Custom-Logging &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Logging Tools &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-Log-Libraries &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] ODBC Logging &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-ODBC-Logging &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Request Monitor &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-Request-Monitor &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Tracing &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-Http-Tracing &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; &nbsp; &nbsp; [X] Performance &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-Performance &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Static Content Compression &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Stat-Compression &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [ ] Dynamic Content Compression &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-Dyn-Compression &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Available 
&nbsp; &nbsp; &nbsp; &nbsp; [X] Security &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Security &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Request Filtering &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-Filtering &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Basic Authentication &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Basic-Auth &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [ ] Centralized SSL Certificate Support &nbsp; &nbsp; Web-CertProvider &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Available 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [ ] Client Certificate Mapping Authentic... Web-Client-Auth &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Available 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Digest Authentication &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-Digest-Auth &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [ ] IIS Client Certificate Mapping Authe... Web-Cert-Auth &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Available 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [ ] IP and Domain Restrictions &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-IP-Security &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Available 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [ ] URL Authorization &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-Url-Auth &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Available 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Windows Authentication &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Windows-Auth &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; &nbsp; &nbsp; [X] Application Development &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-App-Dev &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [ ] .NET Extensibility 3.5 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Net-Ext &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Available 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] .NET Extensibility 4.5 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Net-Ext45 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Application Initialization &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-AppInit &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] ASP &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-ASP &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [ ] ASP.NET 3.5 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-Asp-Net &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Available 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] ASP.NET 4.5 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-Asp-Net45 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] CGI &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-CGI &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] ISAPI Extensions &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-ISAPI-Ext &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] ISAPI Filters &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Web-ISAPI-Filter &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] Server Side Includes &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-Includes &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [X] WebSocket Protocol &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web-WebSockets &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Installed
</div>

<div>
4.5 is the installed version, but the updates as you note reflect that you have 4.6 
look at the web.config and there If not mistaken, you can set the .net framework version you need. 
 
Site application settings is where you can check the .net framework. 
 
Do you have a test environment where you can set this up?
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<div>
Hi Arnold, 
Thanks for taking interest in my issue. 
 
Are you saying &quot;ASP.NET 4.6&quot; windows feature under IIS is the same thing as .net framework that was installed using an offline installer?
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Windows Engineer

String :-)

<div>
I am having trouble reaching the vendor to clarify if Server 2012 R2 is supported by this software, thus my reaching out for help. 
 
The above is really good research and gives me confidence to snap the server and move forward with upgrade. 
Massive thanks @arnold.
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<div>
If you are going to a newer version of a product, test it first..
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Yer thanks. This is a test environment. and Im taking snaps before I do. 
Cheers 
String
</div>

<div>
The above is really good research and gives me confidence to snap the server and move forward with upgrade. 
Massive thanks @arnold.
</div>

<div>
<div class="content wysiwyg-content fr-view">
Hey Team, Just after some consult for a task im doing. I need to upgrade some software on a server, and the instructions from vendor say to: Register ASP.NET With IIS # &nbsp;Start the Server Manager. # Navigate to Manage &gt; Add Roles and Feature &gt; Server Roles # Navigate to Web Server (IIS) &gt; Web Server &gt; Application Development # Enable ASP.NET 4.6. My server though is running 2012 R2 and only has ASP.NET 4.5 available as an option (which is already installed with IIS). Server also already has .netframework 4.6.1 installed. The vendors documentation doesnt mention .netframework, only ASP.net 4.6 feature. Is this the same thing? Cheers String 
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</div>


Hey Team,
Just after some consult for a task im doing.
I need to upgrade some software on a server, and the instructions from vendor say to:
Register ASP.NET With IIS
#
 Start the Server Manager.
# Navigate to Manage > Add Roles and Feature > Server Roles
# Navigate to Web Server (IIS) > Web Server > Application Development
#
Enable ASP.NET 4.6.
My server though is running 2012 R2 and only has ASP.NET 4.5 available as an option (which is already installed with IIS).
Server also already has .netframework 4.6.1 installed.
The vendors documentation doesnt mention .netframework, only ASP.net 4.6 feature.
Is this the same thing?
Cheers
String

Enable ASP.NET 4.6. on Server 2012 R2?

The successor to Active Server Pages, ASP.NET websites utilize the .NET framework to produce dynamic, data and content-driven web applications and services. ASP.NET code can be written using any .NET supported language. As of 2009, ASP.NET can also apply the Model-View-Controller (MVC) pattern to web applications

ASP.NET

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.