There are many reasons why you might need to determine what process is using a particular port or, conversely, what port(s) a particular process has open. There are also a number of tools such as lsof ...

Ok, i've XP with IIS installed. I ran the lockdown tool a few days ago, but decided to first get things working how i want, and THEN lock it down, so i undid it- settings *should* be back the way thay ...