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Inno Setup : How to setup advance settings for IIS application pool?

In Inno setup script how to set advance settings for IIS application pool? I'm specifically looking for setting Idle Time-out property? I was not able to find and helpful information related to setting up IIS or deploying website Inno Setup product help page

Here's screen capture of advance property from IIS :

IIS application pool advance settings - Idle Time-out

Following is a snippet of where I create application pool:

{Configure IIS website}
procedure ConfigureIISWebsite();
begin
  try
  AppPool.Stop();
  // Connect to the IIS server. 
  WebService := IIS.GetObject('IIsWebService', '{#IISServerName}' + '/w3svc');
  // Get the website. 
  WebServer := WebService.GetObject('IIsWebServer', '{#IISServerNumber}');
  WebRoot := WebServer.GetObject('IIsWebVirtualDir', 'Root');
  except
  end;
end;

{Configure App pool}
function ConfigureAppPool(): Boolean;
begin
   // Read values into variables
  Result := True;
  ApplicationName := InputAppNamePage.Values[0];
  VirtualDirectory := InputAppNamePage.Values[0];
  IISApplicationPoolName := InputAppNamePage.Values[0];
    // Create the application pool. 
    try
      AppPool := AppPools.Create('IIsApplicationPool', IISApplicationPoolName);
      AppPool.ManagedPipelineMode := '{#APPPOOL_MANAGED_PIPELINE_MODE}';
      AppPool.ManagedRuntimeVersion :=   '';
      AppPool.SetInfo();
      ConfigureIISWebsite();
    except
      Log('Failed to create an application pool.');
      Result := False;
      Exit;
    end;     
  end;
end;

Would appreciate if someone can point me to any helpful resource or code snippet.

Solution

  • Based off suggestion from @MartinPrikryl following is what worked for my use case :

    AppPool.IdleTimeout := '0'; // 0 value means infinite

    While exploring this I was also able to achieve same by using following ways :

    NOTE : Run installer with appropriate administrative privileges.

    1) Using [Registry] section :

        [Registry]
    ; Modify Idle Time-out for an IIS application pool
    Root: "HKLM"; Subkey: "SOFTWARE\Microsoft\IIS\{IIS Version}\AppPools\{YourAppPoolName}"; ValueType: dword; ValueName: "IdleTimeout"; ValueData: {time in seconds}

    Replace the following placeholders with appropriate values:

    2) Using [Run] section :

       [Run]
   Filename:{sys}\inetsrv\appcmd.exe; Parameters:"set apppool /apppool.name:YourAppPoolName /processModel.idleTimeout:00:30:00"; Flags: runhidden

    Replace the following placeholders with appropriate values:

    Hope this helps others in future.