Why can't I enable FastCGI in IIS under Windows 11?

Question

am running Windows 11 Pro version 22H2, build 22622.290 with Windows Feature Experience Pack 1000.22632.1000.0. I have already reset Windows once because IIS failed to install properly. It now installs, but CGI/FastCGI doesn't so I can't manage/run PHP. I've configured Windows Features to include CGI. I posted this in Answers but was directed here.

Here is what IIS manager looks like:

Notice no CGI icon visible in IIS Manager. PHP Manager gives:

I fear I shall have to do another Windows reset and set up IIS before doing anything else in case another application is causing the issue.

Answer 1

Hello StephenP,

Glad to hear it was fixed with DISM. For the record in case other users can't install even after DISM:

• Run a clean boot to discard 3rd Party apps causing the error: https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-2f8a-a97a1807f3dd

Then, to try install with Powershell and using elevated rights using this simple script:

$features = @(  
   "Web-WebServer",  
   "Web-Static-Content",  
   "Web-Http-Errors",  
   "Web-Http-Redirect",  
   "Web-Stat-Compression",  
   "Web-Filtering",  
   "Web-Asp-Net45",  
   "Web-Net-Ext45",  
   "Web-ISAPI-Ext",  
   "Web-ISAPI-Filter",  
   "Web-Mgmt-Console",  
   "Web-Mgmt-Tools",  
   "NET-Framework-45-ASPNET",  
   "Web-Mgmt-Service",  
   "Web-Windows-Auth",  
   "Web-CGI",  
   "Web-Dyn-Compression",  
   "Web-Scripting-Tools",  
   "Web-Dyn-Compression"  
)  

Add Windows Features

add-WindowsFeature $features -Verbose  

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