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Questions tagged [iis-express]

IIS Express is the developer version of full IIS that doesn't require Administrator rights to run. See also the [iis] tag.

IIS Express is the developer version of full IIS, that doesn't require Administrator rights to run. It is designed as a replacement for the ASP.NET Development Server (aka Cassini) which ships with some releases of Visual Studio. IIS Express has several releases so far, and can be downloaded as separate installer or part of Visual Studio.

Official documentation is on IIS.net here and here.

See also

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IISExpress does not start from Visual Studio 2015

There are several questions here why IISExpress does not launch. The answers I found did not help. But I found the answer myself. This post may help others resolve the issue. Behavior: You open a web project you copied from somebody else in Visual…
Joerg Krause
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Basic Authentication on IIS Express

I've searched for a while now but I can't seem to find the answer. There are ways of disabling/enabling anonymous and windows authentication. Does anyone know how to enable basic authentication on IIS Express (8.0) in Visual Studio 2013?
Dawid O
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Windows Authentication not working in IIS Express, debugging with Visual studio 2013, Windows 8

I just upgraded my application from Visual studio 2012 to Visual studio 2013. My windows authentication is not working any more. It is giving me below error. HTTP Error 401.2 - Unauthorized You are not authorized to view this page due to…
Hiren
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Having problems using IIS Express SSL with VS2012 and a Team

The Problem: ADFS2 requires that a RP Trust uses https. The RP trust being https://localhost:44310/PAWS/. With that said, I need to have IIS Express use SSL locally. So, when I configure my ASP.NET MVC4 project to use IIS Express. When I check…
Evan Larsen
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How to label (set Title) for IIS Express process?

I have a solution with multiple websites and I have been using Cassini for development. When IIS Express came out, I transitioned one of the websites to use it, and everything has been running fine. I just moved another website to use IIS Express…
Michael Teper
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How can VS Code be configured to run and debug with IIS Express and ASP.NET core?

I have been able to run ASP.NET core applications with Visual Studio 2017. Visual Studio has the integration of IIS Express and ASP.NET core all setup and it works with F5. I would like to get this same functionality in VS Code. I have found and…
Matthew MacFarland
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What is the difference between ASP.NET dev server and IIS Express?

Visual Studio SP1 has a facility to run the Webmatrix aka "IIS Express" from Visual Studio instead of the VS development server. What is the difference between both? [ VS development server or IIS express]. Is there anything new and interesting for…
Steven Spielberg
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HTTP Error 405.0 - Method Not Allowed in IIS Express

When issuing a perfectly cromulent verb to a local IIS Express web-site under Visual Studio 2013: CROMULENT http://localhost:7579/Handler.ashx HTTP/1.1 Host: localhost:7579 the server responds with the error: HTTP/1.1 405 Method Not Allowed Allow:…
Ian Boyd
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Using Windows Authentication in ASP.NET

I'm trying to use Windows Authentication in my ASP.NET application. Whenever I try to view the app it sends me to a login page. How can I make it work without having to manually login via the browser? web.config
Antarr Byrd
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How do I stop IIS from caching any files, ever, under any circumstances?

I do some web development for work and the biggest hit to my productivity comes from IIS. It caches files that will not update even when they are changed, unless I restart IIS. Specifically, I am referring to html, js, and css files. This problem…
Noah
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Visual Studio 2015 Preview - Keep IIS Express Running

I'm trying to get a decent development experience with Visual Studio 2015 Preview. To do that I'd love to have my IIS Express running all the time instead of requiring me to start debugging. Anyway to do that? Tried command line: IISExpress.exe…
Mikeon
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web api shows 403.14 error when localhost:port number is in browser address in iis express

This has to be something really dumb but I can't think what else to do. Using Visual Studio 2013 - Update 1, I created an empty web api 2 project in an existing solution, added the cross origin support (cors) package and created a basic web api…
Sergio Romero
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Unable to Start Debugging. visual studio 2012 prompt after one time debug

I am getting this error "Unable to Start Debugging" in visual studio 2012. I have also update the remote debugging sp2. also uninstalled and reinstalled vs2012 and added sp. still facing the same issue. My operating system is windows-8 64 bit. Also…
Francis
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Unable to create virtual directory

I am working on a website which authenticates with Facebook, so that the user can sign in through his/her Facebook profile. I've seen similar questions like this one, but none that covers exactly my issue. To test this Facebook authentication…
Mathias Lykkegaard Lorenzen
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Why am I getting error 500.0 in when using IIS Express (significant debug info included)

I created a blank MVC 3 application on VS2010 SP1, and set the app to use IIS Express. When I debug, I get error 500.0 (0x80070585) I am able to succesfuly run the app using the VS dev server I have set the app directory to Full Permissions for…
Jason Coyne
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