How to find a process that holds a certain port on windows vista so I can run vnc

Question

I am trying to run VNC at 5900, but allegedly some process is holding it, thus vnc complains: NOT accepting connections.

how to fix that

score 6 · Answer 1 · answered Jul 31 '09 at 02:30

6

start -> run -> cmd -> netstat -b

answered Jul 31 '09 at 02:30

Keith

1

you can use netstat -o as well in combination with task manager. – Keith Jul 31 '09 at 02:32

score 2 · Accepted Answer · answered Jul 31 '09 at 07:19

Is it already installed as a service, but you're launching it as a client? The service will already have the port open.
Is the built-in firewall interfering?
As a temporary work-around, have you considered just bumping the display port by 1? This serves as a diagnostic - if you can connect to {host IP}:5901 just fine, then most likely the port really is taken. If that host-port combo also fails, then it's more likely your firewall is causing you grief.

score 1 · Answer 3 · answered Jul 31 '09 at 05:33

1

The entire sysinternals suite is highly recommended.

answered Jul 31 '09 at 05:33

rorr

score 0 · Answer 4 · answered Jul 31 '09 at 02:01

0

download and run cports which is available here. this will tell you what process is listening on what ports.

answered Jul 31 '09 at 02:01

Jim B

score 0 · Answer 5 · answered Jul 31 '09 at 02:25

0

sure there are other tools but http://www.netlimiter.com/ is one tool i have used in the past

answered Jul 31 '09 at 02:25

Simon

5 Answers5