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Service Lookup Tool Description

The Service Lookup tool is a multipurpose reference tool that does four main things.

• It does a lookup to find out what service is supposed to be using a port number and vice versa.
• Edit the winsock services database. Use this editor to find out what a port number is supposed to be used for.
• Edit the winsock protocols database.
• Update the small 'OEM' services database that came with your operating system with the much larger official port assignments services database maintained by IANA.org. We provide a method to roll back the updates. Updated versions of the database are provided with each new version of NetScanTools Pro.

These databases are used by network programs to convert common service or protocol names to numbers used in communicating with Microsoft's implementation of TCP/IP also known as winsock.

Screenshots of a lookup of network port number 79 being shown as assigned to Finger

Screenshot of services database editor

Screenshot of protocols database editor