public class RedirectOnErrorAttribute : FilterAttribute, IExceptionFilter {

        #region IExceptionFilter Members

        public void OnException(ExceptionContext filterContext) {
            if(filterContext.ExceptionHandled) return;

            filterContext.Controller.TempData["Exception"] = filterContext.Exception;
            filterContext.Result = new RedirectToRouteResult(new RouteValueDictionary(new {area = "Desktop", controller = "Exception", action = "HandleError" }));
            filterContext.ExceptionHandled = true;
            filterContext.HttpContext.Response.Clear();
            filterContext.HttpContext.Response.StatusCode = 500;
            filterContext.HttpContext.Response.TrySkipIisCustomErrors = true;
        }

        #endregion
    }

public ActionResult HandleError() {
        Exception ex = (Exception)TempData["Exception"];
        logger.Log(ex);
}