Ports Problem

I’m trying to install apache on Blake’s (AKA: BS (AKA: Cybercode)) computer but he’s already jammed it full of crap and screwed it up. Anyway, I’m trying to find out what program is currently using Port 80 on his computer and was wondering if anyone knew the command prompt command that lists all the ports in use and what program is using them. :q:
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Thanks!
:kommie: Esherido
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