How to get Application Pool name through code (C#, ASP.net)

Question

I want to recycle the application pool through my application.

Previously I was storing the application pool name in my database and using that to recycle. But It happened in the past that we moved apps from one app pool to another and sometimes we forget to update the app pool name in the database.

So I am thinking to get the app pool name through the application and use that for recycling.

something like this? stackoverflow.com/questions/1400464/… — fuchs777
– fuchs777, Commented Sep 4, 2014 at 11:42

Knaģis · Accepted Answer · 2016-08-25 08:07:15Z

28

In many cases it might be enough to just read the name of the application pool from the environment variable:

var apppool = System.Environment.GetEnvironmentVariable(
                  "APP_POOL_ID", EnvironmentVariableTarget.Process);

answered Aug 25, 2016 at 8:07

Knaģis

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2 Comments

julealgon Over a year ago

Can you provide some documentation around this environment variable? Who defines it, and what other variables are defined by IIS?

dahvyd Over a year ago

@julealgon There is a brief mention of this specific environment variable here: learn.microsoft.com/en-us/previous-versions/iis/6.0-sdk/…

Dan Atkinson · Accepted Answer · 2022-09-13 14:27:27Z

21

Modified version of @Razon answer :)

public static string GetCurrentApplicationPoolName()
{
    ServerManager manager = new ServerManager();
    string DefaultSiteName = System.Web.Hosting.HostingEnvironment.ApplicationHost.GetSiteName();
    Site defaultSite = manager.Sites[DefaultSiteName];
    string appVirtualPath = HttpRuntime.AppDomainAppVirtualPath;

    string appPoolName = string.Empty;
    foreach (Application app in defaultSite.Applications)
    {
        string appPath = app.Path;
        if (appPath == appVirtualPath)
        {
            appPoolName = app.ApplicationPoolName;
        }   
    }
    return appPoolName;
}

edited Sep 13, 2022 at 14:27

Dan Atkinson

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answered Sep 4, 2014 at 12:27

dIvYaNsH sInGh

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4 Comments

Kiquenet Over a year ago

IMHO, better answer than Razon answer

Rexxo Over a year ago

Combine the link with the code and that should be the answer.

Prashanth Subramanian Over a year ago

Caution: This code might throw a COM exception if the "Load User Profile" setting in the AppPool on your IIS is not set to "True"

mknopf Over a year ago

Please Note: make sure you wrap the ServerManager into a Using statement so that its disposed of once it goes out of scope (its un-managed code)

razon · Accepted Answer · 2014-09-04 11:44:39Z

5

May this can help: ApplicationPoolName Property

Namespace: Microsoft.Web.Administration Assembly: Microsoft.Web.Administration (in Microsoft.Web.Administration.dll)

http://msdn.microsoft.com/en-us/library/microsoft.web.administration.application.applicationpoolname(v=vs.90).aspx

answered Sep 4, 2014 at 11:44

razon

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1 Comment

Chris O Over a year ago

And just in case, Install-Package Microsoft.Web.Administration

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