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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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What does the little number in IIS Express system tray manager mean?

When opening the system tray adminstration tool for IIS Express there is a little number at the side of the site name (here the number 3): Can anyone tell me, what that means?
asgerhallas
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How to run multipe WCF services using the same IIS Express instance through VS 2010

I have a solution in Visual Studio 2010 with multiple WCF service projects, which I would like to run under IIS Express as a single site with a subfolder containing each WCF project: Web site /WCF-project1 /WCF-project2 /WCF-project3 I…
Rotte2
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How to run the C# application from Visual Studio which can be accessed by 'https://{my ip address}:aport'

I have a ASP.NET C# application and I am able to run it locally on my machine. I see it is IIS Express is hosting my application. I can access it using 'https://localhost:4374'. But when I look up my ip address of my machine and then…
n179911a
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Custom QueryStringModule (httpModules) not taken into account with WebMatrix

I created a QueryStringModule based on the one found here: https://stackoverflow.com/questions/6157150/mvc3-encrypted-querystring-parameters It works fine when I run my web application with the VS2010 debugger, but it is not taken into account when…
Jean-François Beauchamp
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Windows Authentication for .NET Core 2.2 not working - 401 unauthorized

I have an ASP.NET Core webserver that is running on .NET Core 2.2 and was previously able to handle Windows Authentication. This feature wasn't tested for a long time though, and now I'm trying to reactivate it. The frondend is running Angular, and…
Maxim
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Configure TLS version on IIS Express

I've got a .Net 6 web api that uses optional certificate authentication. I'm struggling with my debugging setup. By default, IIS Express doesn't appear to take the client certificate presented, so I edited the applicationhost.config file to…
alt
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Can not Debug on Visual studio 2019

Asp.net MVC project, on Visual Studio , Hosted on Azure, Connected with Microsoft Dynamics CRM, Downloaded from SourceSafe using Visual Studio 2019 => Project is Not using Entity Framework but connected CRM Datasource => Angular and Gulp in the…
Prabir Choudhury
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HTTP Error 400. The request hostname is invalid. On IIS when using `AllowedHosts` appsettings property

I get the error HTTP Error 400. The request hostname is invalid. on swagger when configuring CORS using the AllowedHost property. var origins = Configuration["AllowedHosts"].Split(";"); services.AddCors(options => { …
PancakeAlchemist
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Customise response received with status code 400 in C# .NET MVC

i am creating a test for our application in .NET mvc framework.In the case of "size of headers too long" test for our api when i call the curl from postman with(i am not using all the 88 headers here due to space concerns.It will take 88 headers to…
sand87
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Unable to launch IIS Express Web server - Port '80' is in use

I am getting error message stating Port 80 is in use for one project but not for the other few projects and they are set-up in the same way, but clearly something is different about the set-up of this project. I have followed below links but nothing…
Ram
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TLS 1.2 - unable to run .NET 5 WebApi clean template (Windows 7 + VS 2019)

I've been struggling with it the second day. I created a .NET 5.0 WebApi template in Visual Studio 2019 (simplest WhetherForecast). When I run the solution, the browser opens and I get the message (Firefox browser): The machine I tried to run it on…
Chris4D
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Doppler on local .net debugger

We are implementing Doppler for secure environment variables, but in order to test code we make locally, before we release it, we want to be able to use Doppler in a local setting, so on our debugger. Our backend is made i .net, so it runs with IIS…
Edunno
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How to make DevServer put all assemblies in one folder?

I need to config IIS-Express (or DevServer) to put all output assembly files in one place. Now DevServer copies each dll to its own folder like: C:\Users\UserName\AppData\Local\Temp\Temporary ASP.NET…
The Smallest
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IIS Express Does Not Recognize Running VS2022 as Admin

I had a computer with VS2019 Community installed. I got a new computer, copied my documents over, and installed VS2022 Community. I am launching VS as admin. In the upper-right corner of VS it says "Admin". Also, when launching VS I get the User…
Len White
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IIS Express: Cannot bind url with subdomain

I tried to bind a url with subdomain into my application: xyz.localhost:44310 Every time I change my applicationhost.config, I cannot run my debugger from Visual Studio 2019. There error is: Unable to connect to web server "IIS Express" I have to…
Alvin Stefanus
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