Profiler - Entry point gets called thrice.

Hi,

I kept the entry point for profiling the MVC web applications as  "System.Web.Mvc.MvcHandler:System.Web.IHttpAsyncHandler.EndProcessRequest" and injected some helper function calls inside it's function body.

But my injected helper function is getting called thrice ( Means the Entry point is getting called thrice for the same URL).

What could be the reason for this..? Should i choose a different entry point ?

Thanks 

Selva