Possible Duplicate:
Can you help me with my software licensing issue?
According to the license agreement for Windows 7:
You may allow up to 20 other devices to access software installed on the licensed computer to use only File Services, Print Services, Internet Information Services and Internet Connection Sharing and Telephony Services.
Since it doesn't mentioned 3rd party TCP connections I assume that Microsoft now allows "unlimited" inbound connections?
It didn't used to: see this Microsoft article about Inbound connections on XP.
I ask because for our software can accept many TCP connections (from other instances of our software), and we don't want to break any license agreements by doing so.