Error Handling in ASP.NET

using System;
using System.Collections;
using System.ComponentModel;
using System.Web;
using System.Web.SessionState;

namespace ErrorHandling 
{
	/// <summary>
	/// Summary description for Global.
	/// </summary>
	public class Global : System.Web.HttpApplication
	{
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.IContainer components = null;

		public Global()
		{
			InitializeComponent();
		}	
		
		protected void Application_Start(Object sender, EventArgs e)
		{

		}
 
		protected void Session_Start(Object sender, EventArgs e)
		{

		}

		protected void Application_BeginRequest(Object sender, EventArgs e)
		{

		}

		protected void Application_EndRequest(Object sender, EventArgs e)
		{

		}

		protected void Application_AuthenticateRequest(Object sender, EventArgs e)
		{

		}

		protected void Application_Error(Object sender, EventArgs e)
		{
			// Uncomment the following line to demonstrate an infinite loop - caution: you will have 
			// to stop the request manually
//			Response.Redirect("NoSuchPageExists.aspx");

			
			// Uncomment the following code for handling application level errors - this would 
			// prevent customErrors settings to come into scope

//			string path;
//
//			path = "/ErrorHandling/ErrorPages/ApplicationError.html";
//			
//			// Uncomment this line to force exception for 404
////			path = "/ErrorHandling/ErrorPages/NoSuchPageExists.html";
//			
//			try
//			{
//				Server.ClearError();
//
//				// Attempt to redirect the user
//				Server.Transfer(path);
//			}
//			catch
//			{
//				// Error occured while redirecting user to an error page. We could do nothing
//				// now, but setting a status code and completing the request
//				Response.StatusCode = 404;
//				this.CompleteRequest();
//			}
		}

		protected void Session_End(Object sender, EventArgs e)
		{
		}

		protected void Application_End(Object sender, EventArgs e)
		{

		}
			
		#region Web Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.components = new System.ComponentModel.Container();
		}
		#endregion
	}
}