What happens to Cache when Application Pool recycles?

Question

I have web application on IIS6 Win2003. This application connected to w3wp.exe process which reaches 50-70% of CPU after 3-4 minutes it was recycled ( forced one ). I have f

Answer 1

The Cache is part of the application domain so recycling the Application Pool will invalidate all cache items.

This will also happen if you modify the web.config file or the bin folder.