If you open a command prompt:
1. start -> run
2. type cmd into the box without the quotes
3. Run the following command:
netstat -an | find /i "listening"
This will show you all ports that are in use. Sample output from my machine:
This tells me that ports 135, 445, 5357, 6783, 8080 and 8081 are in use.
Regards,
Zach
Hypercane Studios