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There is a process on a server that is listening on a port that should be closed. &nbsp;How can I figure out what process or application is listening on it? &nbsp;Is there a third-party app that can show this?
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There is a process on a server that is listening on a port that should be closed.  How can I figure out what process or application is listening on it?  Is there a third-party app that can show this?

Ports used by unknown process on server

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).

Windows Server 2003

Operating system security (OS security) is the process of ensuring OS integrity, confidentiality and availability. OS security refers to specified steps or measures used to protect the OS from threats, viruses, worms, malware or remote hacker intrusions. OS security encompasses all preventive-control techniques, which safeguard any computer assets capable of being stolen, edited or deleted if OS security is compromised, including authentication, passwords and threats to systems and programs.