>>>I do not know the specific answer to your question, but I use www.master.com watchdog feature to 1 - keep the site alive and 2 - to report to me if it goes down.
>>
>>There is no problem with the site. What I am trying to explain here is the sleep mode that IIS goes into if no activity is on the site. But, the site responds. It is just that when a hit will arrive, after a period of no activity, it will take longer for IIS to start responding such as 3 to 4 second instead of 0.2.
>
>master.com watchdog can hit the site every 15 minutes, keeping it alive so it does not take 3-4 seconds, provided it is visible to master.com

I assume that just stops the idle timeout from kicking in? From what Michel has said it doesn't sound as if that is what's causing the re-cycling in this instance ?