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How does an AppDomain get created?

  Shared By: Tammy Sanders    Date: Mar 16    Category: .Net Framework    Views: 2763


AppDomains are usually created by hosts. Examples of hosts are the Windows Shell, ASP.NET and IE. When you run a .NET application from the command-line, the host is the Shell. The Shell creates a new AppDomain for every application.

AppDomains can also be explicitly created by .NET applications. Here is a C# sample which creates an AppDomain, creates an instance of an object inside it, and then executes one of the object's methods:

using System;
using System.Runtime.Remoting;
using System.Reflection;

public class CAppDomainInfo : MarshalByRefObject
public string GetName() { return AppDomain.CurrentDomain.FriendlyName; }

public class App
public static int Main()
AppDomain ad = AppDomain.CreateDomain( "Andy's new domain" );
CAppDomainInfo adInfo = (CAppDomainInfo)ad.CreateInstanceAndUnwrap(
Assembly.GetCallingAssembly().GetName().Name, "CAppDomainInfo" );
Console.WriteLine( "Created AppDomain name = " + adInfo.GetName() );
return 0;


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