Q: Is there a limit for how many IIS Application Pools a server can have? The title sums it up. Is there a limit of how many application pools a server's IIS can have?

A: The configuration system allows you to set many many more pools, but each pools' worker processes will consume system resources like CPU and memory. Thus, the final limit comes from the worker processes and that's determined by the sites, which vary in all possible ways.
