FcsModule.cs

 
public class FcsModule : IHttpModule {

    public String ModuleName {
        get { return "HelloWorldModule"; }
    }

    // In the Init function, register for HttpApplication 
    // events by adding your handlers.
    public void Init(HttpApplication application) {
        application.BeginRequest +=
            (new EventHandler(this.Application_BeginRequest));
        application.EndRequest +=
            (new EventHandler(this.Application_EndRequest));
    }

    private void Application_BeginRequest(Object source,
                                          EventArgs e) {
        // Create HttpApplication and HttpContext objects to access
        // request and response properties.
        HttpApplication application = (HttpApplication) source;
        HttpContext context = application.Context;
        string filePath = context.Request.FilePath;
        string fileExtension =
            VirtualPathUtility.GetExtension(filePath);
        if (fileExtension.Equals(".aspx")) {
            context.Response.Write("<h1><font color=red>" +
                                   "HelloWorldModule: Beginning of Request" +
                                   "</font></h1><hr>");
        }
    }

    private void Application_EndRequest(Object source, EventArgs e) {
        HttpApplication application = (HttpApplication) source;
        HttpContext context = application.Context;
        string filePath = context.Request.FilePath;
        string fileExtension =
            VirtualPathUtility.GetExtension(filePath);
        if (fileExtension.Equals(".aspx")) {
            context.Response.Write("<hr><h1><font color=red>" +
                                   "HelloWorldModule: End of Request</font></h1>");
        }
    }

    public void Dispose() {}
}