http://msmvps.com/blogs/paulomorgado/pages/the-cost-of-client-side-redirects-in-asp-net-and-using-page-modules-.aspxIn an ASP.NET application the instances of the HttpApplication class are responsible for handling the requests. These instances are created by the ASP.NET infrastructure and each one may serve many request in its lifetime, however, serving only one atenCommunityServer 2008.5 SP2 (Build: 40407.4157)