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How to determine number of open ports and number of available ports

Posted on 2008-06-19
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Last Modified: 2012-05-05
I'd like to know how on windows to determine the number of ports available for use on a computer.
I'd also like to know how to see how many ports are in use at any given time.  I know I can use netstat to list the ports in use, but the output makes it a little inconvenient to count the usage

Thanks
Sean
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Question by:SeanTiley
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Johnjces earned 150 total points
ID: 21823670
There are 65536 ports available to any TCP stack or PC.

You could try and download IPScanner.exe form sourceforge and that can be set up to give you a more readable list of in use ports and then subtract.

http://www.angryziber.com/w/Home

Please note that some anti-virus programs will disable this application as being a hack tool.

John
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Author Comment

by:SeanTiley
ID: 21823775
Thanks John,
Ill give that a try and see if it will work for me.

Sean
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