How-To Geek on MSN

How to Check Open TCP/IP Ports in Windows

Run the command "netstat -ab" in an elevated Command Prompt, PowerShell, or Terminal window to see a list of applications and ...
Ars Technica

Windows print server - what ports to open on firewall?

I have a VM running Server 2008 R2 SP1 that is a network print server - TCP/IP print queues are installed on the server, and then shared out/published in AD. Client PC's connect to the shared printers ...