ASP.NET Core 3.1 - Windows Hosting Bundle Installer Doesn't Install Module For IIS Express

[khalidabuhakmeh]

Describe the bug

I recently rebuilt my machine and was just using IIS Express. I wanted to host .NET Core in IIS Express, so I was using trying to use the Windows Hosting Bundle to install the module. I ran the installer three times. It would successfully complete, but would not install the module assemblies under the following directories:

• C:\Program Files (x86)\IIS\Asp.Net Core Module\V2\aspnetcorev2.dll
• C:\Program Files\IIS\Asp.Net Core Module\V2\aspnetcorev2.dll

After enabling full IIS, the installer was able to create these folders and drop the ASP.NET Core module correctly.

To Reproduce

1. Start with a fresh Windows 10 Installation
2. Install IIS Express
3. Install the Windows Hosting Bundle

Expected: Get the assemblies for the ASP.NET Core Module.
Actual: The ASP.NET Core Module never installs.

Expectations

• Support IIS Express
• Install the hosting module even if IIS is not presently installed.

[mkArtakMSFT]

@anurse I've assigned both area-labels as I'm not sure where this actually belongs.

[analogrelay]

I wanted to host .NET Core in IIS Express, so I was using trying to use the Windows Hosting Bundle to install the module. I ran the installer three times. It would successfully complete, but would not install the module assemblies under the following directories:

This is the intended behavior. The Hosting Bundle includes the module for full IIS. The Visual Studio installer brings the module for IIS Express. At this time there is no standalone installer for ANCM on IIS Express. (cc @shirhatti)

[analogrelay]

Just noticed your other comments about installing IIS after the Hosting Bundle. You do have to repair the Hosting Bundle install after installing IIS, this is by design.