What is binding this port?
Solution 1:
Try netstat -anb
C:\> netstat -anb
Active Connections
Proto Local Address Foreign Address State PID
TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 1724
[Apache.exe]
Update: That a in -anb
is there for a reason!
C:\> netstat /?
Displays protocol statistics and current TCP/IP network connections.
NETSTAT [-a] [-b] [-e] [-n] [-o] [-p proto] [-r] [-s] [-v] [interval]
-a Displays all connections and listening ports.
^^^^^^^^^^^^^^^^^^^^
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Solution 2:
For future reference, Sysinternals has a lot of great tools for discovering what is happening on your machine. tcpview, for example, gives you real-time monitoring of TCP/UDP sockets, filemon can show you activity related to file accesses ... the list goes on.