According to a recent Microsoft article, we should do this:

void Application_BeginRequest(object source, EventArgs e) {
   if (Request.Path.IndexOf('\\') >= 0 ||
       System.IO.Path.GetFullPath(Request.PhysicalPath) !=
Request.PhysicalPath) {
       throw new HttpException(404, "not found");
   }
}

from now on in our global.asax.cs files for web apps.  I'd like to just
modify VS.NET so that it automatically does that when new projects are
created.  However, I don't see global.asax.cs as a template anywhere.  I see
global.asax, but not it's codebehind.

Is there a way to make this code automatic on all new C# web projects in
Visual Studio 2003?