Free tool to find open ports

Hello, I use netstat but was wanting to find popular tools used to find open ports.  Thanks
gloyola1Asked:
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Ganesh Kumar ASr Infrastructure SpecialistCommented:
Download these tools, angry ip scanner is ip scanner tool, but also allows to scan ports as well.

Opensource port scanners : http://angryip.org/download/#windows 

This is microsoft tool :
PortQuery tool : http://blogs.microsoft.com/cybertrust/2012/10/01/microsofts-free-security-tools-portqry/
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Joe Winograd, Fellow&MVEDeveloperCommented:
I'm a huge fan of NirSoft's (free!) utilities, which I've been using for many years:
http://www.nirsoft.net/

One of them is CurrPorts:
http://www.nirsoft.net/utils/cports.html

Scroll to the bottom of the page at the above URL for the download links. Note that there are both 32-bit and 64-bit versions. It is a no-install/stand-alone executable — just unzip the file and run the EXE.
CurrPorts is network monitoring software that displays the list of all currently opened TCP/IP and UDP ports on your local computer. For each port in the list, information about the process that opened the port is also displayed, including the process name, full path of the process, version information of the process (product name, file description, and so on), the time that the process was created, and the user that created it. In addition, CurrPorts allows you to close unwanted TCP connections, kill the process that opened the ports, and save the TCP/UDP ports information to HTML file , XML file, or to tab-delimited text file. CurrPorts also automatically mark with pink color suspicious TCP/UDP ports owned by unidentified applications (Applications without version information and icons)
Regards, Joe
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gloyola1Author Commented:
Thanks for the suggestions
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