How can I configure IIS settings in ASP.NET Core?

[SetTrend]

Description

The MS Learn documentation page "In-process hosting with IIS and ASP.NET Core" appears to provide incorrect information in section "Application configuration":

builder.Services.Configure<IISServerOptions>(options =>
{
  options.AutomaticAuthentication = false;
});

The Services object available to me doesn't provide a Configure method:

How can I configure IIS module settings in ASP.NET Core 8⁺⁺?

[martincostello]

Do you have the Microsoft.Extensions.Options (or it might be Microsoft.Extensions.DependencyInjection) namespace in scope in your usings?

[SetTrend]

Ah, I see. Thanks for helping me out on this!

So, the documentation is missing that using (Microsoft.Extensions.DependencyInjection).

[martincostello]

Are you using <ImplicitUsings>true</ImplicitUsings> in your project file? If not that will be why you had to add it.

The documentation samples appear to be based around minimal hosting for .NET 6+, where this is the default, so they don't need explicitly adding as they're implicitly added to every code file of a project using Microsoft.NET.Sdk.Web.

[SetTrend]

Ah, I see. I'm a "control freak". So, I'd like to know where things are coming from. And that's why I disabled this setting 😉