Get application pool name and status from IIS server with .net core

Question

I want to access the name and status of the application pool with .NET core

We used to either manually check the status or use different tools to check the status of the application pools in IIS. But the update and removal with these tools is still a manual job which people tend to forget.

I tried to do this:

public static void GetApplicationPoolNames()
    {
        ServerManager manager = new ServerManager();
        Site defaultSite = manager.Sites["Default Web Site"];

        foreach (Application app in defaultSite.Applications)
        {
            Console.WriteLine(
                "{0} is assigned to the '{1}' application pool.",
                app.Path, app.ApplicationPoolName);
        }
    }

but this is only for my local IIS installation. I like to access a different IIS server and retrieve this information. Is it nescessary that I host the application within the same IIS pool? Or can it be a standalone project?

For .NET Core apps, you might build upon the REST API, github.com/microsoft/IIS.Administration — Lex Li
– Lex Li, Commented Sep 8, 2020 at 14:48

Bruce Zhang · Accepted Answer · 2020-09-09 05:09:50Z

1

Here are two methods to get information of application pool. The first one is just like in your code, you can easily and quickly get the information of the application pool on the local IIS.

public static void GetPoolName()
    {
        ServerManager server = new ServerManager();
        ApplicationPoolCollection apc = server.ApplicationPools;
        foreach (ApplicationPool pool in apc)
        {
            bool autostart = pool.AutoStart;
            string poolname = pool.Name;

            Console.WriteLine(poolname);
            Console.WriteLine(autostart);
        }
    }

The second one use DirectoryEntry to get app pool information, including iis in remote server. You need to set server name, username and password so that have permission. More information can refer to this link

public static void GetPoolName()
    {
        string uname = "your username";
        string pwd = "passwod";
        string serverName = "remote server";
        DirectoryEntries apppools = new DirectoryEntry("IIS://" + serverName + "/W3SVC/AppPools", uname, pwd).Children;
        foreach (DirectoryEntry pool in apppools)
        {
            int code = (int)pool.InvokeGet("AppPoolState");
            string status;
            switch (code)
            {
                case 2:
                    status = "Running";
                    break;
                case 4:
                    status = "Stopped";
                    break;
                default:
                    status = "Unknown";
                    break;
            }
            Console.WriteLine(pool.Name);
            Console.WriteLine(status);
        }
    }

answered Sep 9, 2020 at 5:09

Bruce Zhang

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4 Comments

Proliges Over a year ago

This code gives me the following exception : System.Runtime.InteropServices.COMException: 'Unknown error (0x80005000)' Any toughts on that?

Bruce Zhang Over a year ago

Please check the IIS Metabase and IIS 6 configuration compatibility to install it in windows features.

Proliges Over a year ago

We have IIS version 10.xxx. Do I need to install any compatibility software to run with IIS6? Maybe i'm misunderstandig this subject. Can you provide me with some documentation or am I missing something obvious?

Bruce Zhang Over a year ago

IIS 7 does not install an ADSI provider by default. You can enable it however as a Role Service for the IIS Web Server. In your control panel, choose programs, turn windows features on or off, then Internet Information Services,Web management compatibility, check IIS metabase and IIS6 configuration

Lars Holm Jensen · Accepted Answer · 2022-09-22 16:37:47Z

0

If anyone finds this question and just needs the name of the apppool in .NET Core

Environment.UserName

holds the username, which by default is the same as the application pool name in IIS.

answered Sep 22, 2022 at 16:37

Lars Holm Jensen

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1 Comment

julealgon Over a year ago

Can you provide some backing documentation for that claim that it is the same as the IIS apppool name?

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