2 Situations here of permissions and access:
Cannot Read Configuration File due to Insufficient permissions
This has happening on every single VM instance of Windows Server V. 2019 standard Build 17763.rs5
Solution One by many obfuscated answers in this website: change the Application Pool settings in Advance settings, Identity to LocalSystem: Server responds to provide the basic pages, But no layouts, css, no images, Nothing, Pure HTML served at the end and Modules not even signalled (thank you VS Debugger for telling me this 10 times in a row)
Solution deux Use Windows Security ownership and add the role of the IIS and the other variants that server other roles, NOPE, nothing. also probably security risk.
Situation 2
My Workstation had replicated same deployment process from ASP.NET MVC template from visual studio 2019 and application ran fine. Once.
I had a deployed WebApp in my local machine workstation with the Default template for ASP.NET in Framework (not core, I see you there dude), and the IIS module built, worked fine, did it is purpose. and Only worked in my workstation and my final goal is to be it deployable on other machines... UNTIL:
Cannot add modules to Website Templates made in ASP.NET (Framework)
After that IIS does not allow me to do anything,some Roslyn something in some answers but that didn't work, but were mostly manual removal of it to make it work, which doesn't fit to make a deployment to many computers at once in few clicks (not my choice).
Did my VS updated something? or IIS? Why my regular setup worked just few days ago and now Nothing, even from scratch cant do it's purpose,
Any Ideas? Questions to my questions?
I have setup as per http://docs.asp.net/en/latest/publishing/iis.html IIS to allow ASP.NET 5 apps to run
I also installed ASP.NET 5 on the machine
The HTTP Platform Handler are also installed (x64)
I created an app pool with the settings like said on the docs and set the pool to no managed code
Set the site to run the app pool i created above.
The system.webServer/handlers section in web.config is unlocked
Once I access the site, the sites loads forever and nothing appears.
In the logs, I get:
Error: Unable to load application or execute command 'Microsoft.AspNet.Server.Kestrel'. Available commands: web.
I can start the application if I run the web.cmd in the approot directly.
It will start the Kestrel server and process properly.
What am I doing incorrectly?
Trying to search for the above error gets me no results.
Server is running IIS 8.5 - windows server 2012 R2 with all the updates done.
EDIT:
I am using ASP.NET 5 RC1
I am not using a virtual directory
I am not publishing to AZURE
The web.config in the wwwroot folder should help IIS figure out what you want to run. Maybe post that?
MVC 6 Windows Server 2012 R2 IIS 8.5 - Error: Unable to load application or execute command 'Microsoft.AspNet.Server.Kestrel'
The solution as posted here but also Problems publishing asp vnext website on IIS 8
ASP 4.5 wasn't installed, to install it go to Server Manager , Add Roles and Features, Web Server IIS / Web Server / Application Development and check ASP .NET 4.5 and .NET Extensibility 4.5
UPDATED - pointed to the wrong directory at first. Thanks for the tip Wiktor. Still not succeeded in running the MVC4 application via
I am trying (for a while now.. :)) to set up a simulated multi tenant webapp on my development PC. I learned that this is not possible with visual studio's internal webserver, so I am trying to set up IIS.
I added the fake tenants in my hosts.
127.0.0.1 localhost
127.0.0.1 tenant1.mydomain.com
127.0.0.1 tenant2.mydomain.com
In IIS I made a new website test(port 8081), and just pointed it to C:\Azure\Websites\. In that directory I added a Hello World html file to see if this bit works.
I navigated to localhost:8081 => Hello world
I navigated to tenant1.mydomain.com:8081 => Hello world.
Cool, first proof of life.
Next step: getting this working with a MVC4 webapp created in VS2012.
I started a new MVC4 webapp and stored it in:
C:\Azure\Websites\MvcApplication1
I just use the default generated website for the test, so I pressed F5 and verified the site is opened in firefox. So the goal is to get this working from IIS.
Created a new website test2 (port 8082)
Set test2 app pool to .net4.0
Point the physical directory to C:\Azure\Websites\MvcApplication1\MvcApplication1\
Navigate to localhost:8082
HTTP Error 500.21 - Internal Server Error
Handler "ExtensionlessUrlHandler-Integrated-4.0" has a bad module "ManagedPipelineHandler" in its module list
Uninstalled ASP.NET and reinstalled it again. Same results.
when I change web.config from
preCondition="classicMode,runtimeVersionv4.0,bitness32"
to
preCondition="integratedMode,runtimeVersionv4.0,bitness32"
Then I get this error:
HTTP Error 404.2 - Not Found
The page you are requesting cannot be served because of the ISAPI and CGI Restriction list settings on the Web server.
Can I stress the fact that I am a n00b regarding IIS configuration... :)
Any ideas?
ISAPI and CGI Restictions in IIS:
Add isapi dll for .net 4 32bit
Add isapi dll for .net 4 64bit
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll
And it works. Finally!
Thanks Wiktor
First configure IIS according this site:
IIS 7.5 handler "extensionlessurlhandler-integrated-4.0" has a bad module "managedpipelinehandler" in its module list
For the above issue, you must go to Control Panel >> Installed Programs and Features >> Repair your .NET Framework by double clicking on it.
first configure IIS as
Manual configuration
Open your Control Panel and click Programs and Features » Turn Windows features on or off.
Turn on Internet Information Services.
Under Internet Information Services, turn on the following features:
Web Management Tools » IIS 6 Management Compatibility » IIS Metabase and IIS 6 configuration compatibility.
Web Management Tools » IIS Management Console, IIS Management Scripts and Tools, and Management Service.
Under World Wide Web Services, turn on the following:
All features under Application Development features, except Server-Side Includes.
Common HTTP Features » Default Document, Directory Browsing, HTTP errors, Http Redirection, Static Content.
Security » Basic Authentication, Request Filtering, Windows Authentication.
Under Microsoft .NET Framework 3.5.1 » Windows Communication Foundation HTTP Activation.
After you have created your website, open the Internet Information Services (IIS) Manger.
Expand your server node.
Expand Sites node and click your website.
In section IIS on the right, double-click Authentication.
Perform one of the following:
If you are using Forms authentication, make sure Anonymous Authentication and Forms Authentication are enabled and all other authentications are disabled.
If you are using Claims-based authentication, make sure only Anonymous Authentication is enabled and all other authentications are disabled.
Click your website again and in IIS section, double-click Handler Mappings.
Make sure you have enabled handler mappings for *.svc and *.xamlx with executable path set to one of the following:
For 64-bit OS: %windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll
For 32-bit OS: %windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll
Close the Internet Information Services (IIS) Manger.
To be honest, I've tried to turn a dirty trick on IIS and just when I thought that I was going to get away with it, I realized my workaround doesn't work. Here's what I've tried to do:
1) I have ASP.NET application which has Preloader class that inherits IProcessHostPreloadClient and does all the heavy initialization in Preload method implementation (application is complex and it's a part of an enormous system, so it requires approximately 2 minutes to establish connections to all necessary services and pre-instantiate some Unity registrations).
2) I have a lot of work that needs to be done on application shutdown (unsubscribing, disconnecting, disposing,...), and I guess the best place to do it is in *Application_End* method located in Global.asax.
3) Everything works just fine when I have user activity (first request after the Application Pool that contains aforementioned web application is started will cause *Application_Start* to be called and afterwards *Application_End* is called on Application Pool stop or recycle), but problems occur when there is no user activity and application tries to restart itself after being active for 48 hours (configured requirement). Since there was no requests, application officially didn't get started. Ergo, it can't be gracefully stopped since *Application_End* won't be called.
4) Now comes the messy part... I've tried to make a GET request from code at the end of the Preload method, and it worked. But this solution seemed bad to me, even though it worked. So, I've tried a lot of things, and the last thing I tried was this:
SimpleWorkerRequest swr = new SimpleWorkerRequest(string.Empty, string.Empty, tw);
HttpRuntime.ProcessRequest(swr);
... and that has done it's purpose. *Application_Start* was called, (I've checked response, it was containing login page that was supposed to be displayed in initial request) and on Application Pool shutdown application ended gracefully by doing necessary work in *Application_End*.
BUT
After the application was started (preloaded and initiated) in this manner, this is what happened when I wanted to reach application via Web browser:
HTTP Error 500.21 - Internal Server Error
Handler "ExtensionlessUrlHandler-Integrated-4.0" has a bad module "ManagedPipelineHandler" in its module list
I am unable to figure this out. Can anybody tell me why this happens and how to fix it?
If I don't figure this out, I will go back to first solution (sending GET request from code) but this problem will bug me since I don't even have an idea what's wrong.
Try to re-register ASP.NET with aspnet_regiis -i. It worked for me.
A likely path for .NET 4 (from elevated command prompt):
c:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -i
http://forums.iis.net/p/1190643/2026401.aspx
If you're running into this error with Windows 8/Windows Server 2012 and .Net 4.5 follow these instructions here:
http://www.britishdeveloper.co.uk/2013/01/handler-extensionlessurlhandler.html
Go to "turn Windows features on or off"
Then Internet Information Services
Then World Wide Web Services
Then Application Development Features
And then enable ASP.NET 4.5
This worked for me (although the wizard and wording is a little different in Windows Server 2012, but you'll figure it out). With this being said, why this is necessary after installing everything through the Web Platform Installer including all of the dependencies is completely beyond me...
Despite following most of the advice on this page, I was still getting problems on Windows Server 2012. Installing .NET Extensibility 4.5 solved it for me:
Add Roles and Features > Server Roles > Web Server (IIS) > Web Server > Application Development > .NET Extensibility 4.5
For Windows 10 / Windows Server 2016 use the following command:
dism /online /enable-feature /featurename:IIS-ASPNET45 /all
The suggested answers with aspnet_regiis doesn't work on Windows 10 (Creators Update and later) or Windows Server 2016:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -i
Microsoft (R) ASP.NET RegIIS version 4.0.30319.0
Administration utility to install and uninstall ASP.NET on the local machine.
Copyright (C) Microsoft Corporation. All rights reserved.
Start installing ASP.NET (4.0.30319.0).
This option is not supported on this version of the operating system. Administrators should instead install/uninstall ASP.NET 4.5 with IIS8 using the "Turn Windows Features On/Off" dialog, the Server Manager management tool, or the dism.exe command line tool. For more details please see http://go.microsoft.com/fwlink/?LinkID=216771.
Finished installing ASP.NET (4.0.30319.0).
Interestingly, the "Turn Windows Features On/Off" dialog didn't allow me to untick .NET nor ASP.NET 4.6, and only the above DISM command worked. Not sure whether the featurename is correct, but it worked for me.
Run one of these commands :
For 32 Bit Windows OS:
c:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -i
For 64 Bit Windows OS:
c:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -I
This https://stackoverflow.com/a/13266763/1277458 works perfectly. But if you have 64-bit operation system use Framework64 instead of Framework in path:
c:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -i
The problem
You are using SimpleWorkerRequest in a scenario that it wasn't designed for. You are using it inside of IIS. If you look at the prior MSDN link (emphasis is mine):
Provides a simple implementation of the HttpWorkerRequest abstract class that can be used to host ASP.NET applications outside an Internet Information Services (IIS) application. You can employ SimpleWorkerRequest directly or extend it.
Also, if you look at the MSDN documentation for the System.Web.Hosting namespace (SimpleWorkerRequest is in this namespace), you will also see something similar to the above (again, emphasis is mine):
The System.Web.Hosting namespace provides the functionality for hosting ASP.NET applications from managed applications outside Microsoft Internet Information Services (IIS).
The solution
I would recommend removing the call to SimpleWorkerRequest. Instead, you can use a Microsoft solution to make sure your web site automatically starts up after it recycles. What you need is the Microsoft Application Initialization Module for IIS 7.5. It is not complicated to configure, but you need to understand the exact options. This is why I would also recommend the Application Initialization UI for IIS 7.5. The UI is written by an MSDN blogger.
So what exactly does the Microsoft solution do? It does what you are trying to do - IIS sends a "get" request to your website after the application pool is started.
In my case (Windows 10 + IIS 10) i had to open "Turn Windows Features On or Off" and then go to Internet Information Services > World Wide Web Services > Application Development Features > and check ASP.NET 4.6
I solved this problem, adding in "Turn Windows features on or off"
The option ASP.NET 4.7
Making this its own post because this had me going for hours.
I saw maybe a dozen of similar posts here and elsewhere about this problema and the aspnet_regiis fix. They weren't working for me, and aspnet_regiis was acting odd, just listing options etc.
As user ryan-anderson above indicated, you cannot enter .exe
For those less comfy with things outside IIS on the server, here's what you do in simple steps.
Find aspnet_regiis in a folder similar to this path. c:\Windows\Microsoft.NET\Framework\v4.0.30319\
Right-click command prompt in the start menu or wherever and tell it to run as administrator. Using the windows "Run" feature just won't work, or didn't for me.
Go back to the aspnet_regiis executable. Click-drag it right into the command prompt or copy-paste the address into the command prompt.
Remove, if it's there, the .exe at the end. This is key. Add the -i (space minus eye) at the end. Enter.
If you did this correctly, you will see that it starts to install asp.net, and then tells you it succeeded.
Make sure that you have set your application-site version from v2.0 to v4.0 in IIS Manager:
Application Pools > Your Application > Advanced Settings > .NET Framework Version
After that, install your ASP.NET.
For 32-Bit OS (Windows):
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -i
For 64-Bit OS (Windows):
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -i
Restart your application-site in IIS Manager and enjoy.
I know this is an oldie, but thought I might add some value. For those of us running Server Core outside of a domain (domain members can just run Server Manager remotely to add/remove features/roles), you have to resort to command lines.
Powershell users can type "Install-WindowsFeature Web-Asp-Net45"
That should be equivalent to using server manager.
I was challenged by the same error message, with .net 4.7 installed.
The solution was to follow one earlier mentioned post to go with the "Turn Windows feature on or off", where the ".NET Framework 4.7 Advanced Services" --> "ASP.NET 4.7" already was checked.
Further down the list, there is the "Internet Information Services" and subnote "Application Development Features" --> "ASP.NET 4.7", that also needs to be checked.
When enabling this, allot of other features are enabled... I simply pressed the Ok button, and the issue was resolved.
Screendump of the windows features dialog
Installing .NET 4.7 worked for me. I only had 3.5 installed prior.
I'm working on Windows Server 2012. .NET Extensibility 4.5 feature is on. WebDAVModule removed.
I was still getting 500.21 error on ASP.NET route '/docs'.
Changing 'skipManagedModules' to false fixed the problem.
<applicationInitialization doAppInitAfterRestart="true" skipManagedModules="false">
<add initializationPage="/docs" />
</applicationInitialization>
Thanks to https://groups.google.com/forum/#!topic/bonobo-git-server/GbdMXdDO4tI
I had this problem and found that removing the following folder helped, even with the non-Express edition.Express:
C:\Users\<user>\Documents\IISExpress
This error started happening to me out of nowhere last week, affecting the existing web sites on my machine. I had no luck with it trying any of the suggestions here. Eventually I removed WebDAV from IIS completely (Windows Features -> Internet Information Services -> World Wide Web Services -> Common HTTP Features -> WebDAV Publishing). I did an IIS reset after this for good measure, and my error was finally resolved.
I can only guess that a Windows update started the issue, but I can't be sure.
You could fix it by change the "ExtensionlessUrlHandler-Integrated-4.0" type in iis to System.Web.DefaultHttpHandler
For me, removing WebDAV from my server caused the application to return a 503 Service Unavailable Error message when using PUT or DELETE, so I re-installed it back again. I also tried completely removing .NET Framework 4.5 and reinstalling it and also tried re-registering as suggested but to no avail.
I was able to fix this by disabling WebDAV for the individual application pool, this stopped the 'bad module' error when using PUT or DELETE.
Disable WebDAV for Individual App Pool:
Click the affected application pool
Find WebDAV Authoring Tools in the list
Click to open it
Click Disable WebDAV in the top right.
Ta daaaa!
I still left the remove items in my web.config file.
<system.webServer>
<modules>
<remove name="WebDAVModule"/>
</modules>
<handlers>
<remove name="WebDAV" />
</handlers>
<system.webServer>
This link is where I found the instructions but it's not very clear.
This maybe not a usefull solution for OP but it concerns the same "error" message.
We are hosting PHP pages on IIS8.5 with .NET 4.5 installed correctly.
We make use of the preload functionality to make sure our application is always responsive across the board.
After a while we started getting this error at random.
In the web.config : I put skipManagedModules to true, -> don't do this!
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<applicationInitialization skipManagedModules="false" doAppInitAfterRestart="true">
<add initializationPage="/" />
</applicationInitialization>
...
Although website is php, the routing to the paging is managed by the modules!!!
I also ran into that problem. My MVC4 App is running on a Windows Server 2012 R2 with IIS 8.5. None of these posted solutions worked for me...installing the missing frameworks through IIS Features could have solved it but the installation always failed.
I had to use the Web Platform Installer and installed the following packages:
I was facing this issue in a web application hosted on a shared hosting server. So obviously did not have direct access to IIS, so could not apply many solution proposed here.
On the hosting provider's control panel I enabled error logging for IIS and ASP.Net. And then got to know that error actually lied in a missing cshtml.
I have Windows 7 professional running IIS7. I have installed ASP.NET MVC 1.0 and VS2008. When I run the app with Cassini it runs fine. When I create a virtual directory and run it on IIS7, the app comes up with a blank web page and no errors at all.
How do I get ASP.NET MVC projects running on IIS7?
I run with that configuration every day. There are a few steps you need to go through to be sure IIS 7.5 (on Win 7) is configured properly. Follow the instructions using the link below. Although they're meant for Vista / IIS 7, they still hold.
http://learn.iis.net/page.aspx/387/using-visual-studio-2008-with-iis-70/
Let us know the outcome.
For those interested the problem was Skype had captured port 80 so IIS could not use that port of course.
Malcolm