Enumerating AppDomains

Have you ever wondered how to enumerate all AppDomains in the current process?  It can be done with a little COM interop...

// Add the following as a COM reference...
// C:\WINDOWS\Microsoft.NET\Framework\v1.0.3705\mscoree.tlb

using System;
using System.Collections;
using System.Runtime.InteropServices;
using mscoree;

public class AppDomainUtils
{
    public static IList ListAppDomains()
    {
        CorRuntimeHostClass host = new CorRuntimeHostClass();
        try
        {
            ArrayList list = new ArrayList();
            IntPtr enumHandle;
            host.EnumDomains(out enumHandle);
            while(true) 
            {
                object domain;
                host.NextDomain(enumHandle, out domain);
                if(domain == null) break;
                list.Add((AppDomain)domain);
            }
            host.CloseEnum(enumHandle);
            return list;
        }
        finally
        {
            Marshal.ReleaseComObject(host);
        }
    }
}

This is a modified version of some code NETMaster (Thomas Scheidegger) posted.