Check on avaiable port using wmi win32 class?

Question

I am using inno setup to make an installation file. It required to pull local ip address (which I able to do by querying Win32_NetworkAdapterConfiguration) and check if a specific port is open for the software to run on (which I am currently looking for an answer).

I realize that WMI Win32 classes contain so many useful information. So I wonder which Win32 class should I use to check on this port given that if it is possible to do that?

Thank you,

score 2 · Answer 1 · edited May 23 '17 at 11:56

AFAIK the only WMI class to check if a given port is open is the NetDiagnostics WMI class and the ConnectToPort method, but this class only is present in Windows XP. So if you want an option which works in another Windows versions you can try to import (or write your own application and invoke from inno) something like the Winsock connect function, like is show on this question How to check if a TCP port is available with Delphi?

score 0 · Answer 2 · answered Nov 09 '12 at 02:17

0

Just try to bind a socket to it. If it succeeds, it's available.

answered Nov 09 '12 at 02:17

user207421

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Can you provide an example how to do this connection? – Lizz Nov 10 '12 at 08:00
@Lizz Do you really need an example for bind()? – user207421 Nov 17 '12 at 23:27
This isn't linux, it's Windows, so only smart people know how to do bind off the cuff. Can you help? – Lizz Nov 18 '12 at 02:51
@lizz The code required is identical on Linux and Windows, apart from the differences introduced by Winsock. No extra smarts required. – user207421 Apr 21 '14 at 23:47

Check on avaiable port using wmi win32 class?

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