Comment Headache Central (Score 1) 348
Yes. Often times in less critical systems, it happens. If it's critical, though, or has any privileged accounts that can access critical stuff, it definitely keeps it. Let me tell you, as nice as the Windows Firewall interface is in Server 2008 and above, it can be a painstaking endeavor to find all the exceptions you need. Then there's always the support guy asking "Umm... why come... why come I can't ping this? It's broke. Fix it."