how run DTs package programatically

 using System;
using Microsoft.SqlServer.Dts.Runtime;

namespace RunFromClientAppWithEventsCS
{
class MyEventListener : DefaultEvents
{
public override bool OnError(DtsObject source, int errorCode, string subComponent,
string description, string helpFile, int helpContext, string idofInterfaceWithError)
{
// Add application-specific diagnostics here.
Console.WriteLine("Error in {0}/{1} : {2}", source, subComponent, description);
return false;
}
}
class Program
{
static void Main(string[] args)
{
string pkgLocation;
Package pkg;
Application app;
DTSExecResult pkgResults;

MyEventListener eventListener = new MyEventListener();

pkgLocation =
@"C:\Program Files\Microsoft SQL Server\90\Samples\Integration Services" +
@"\Package Samples\CalculatedColumns Sample\CalculatedColumns\CalculatedColumns.dtsx";
app = new Application();
pkg = app.LoadPackage(pkgLocation, eventListener);
pkgResults = pkg.Execute(null, null, eventListener, null, null);

Console.WriteLine(pkgResults.ToString());
Console.ReadKey();
}
}
}

Thank you