Welcome to the User's Manual/Installation Guide for Top Jimmy Software's TJPing.
I think you will find that TJPing's speed, ease-of-use, and attractive user interface
make it an excellent Ping/Lookup/Traceroute utility. 
A Windows 95/NT Ping/Lookup/Traceroute Application

What are Ping, Lookup, and Traceroute?

PING:  Ping, an acronym for "Packet INternet Groper"
(probably originally contrived to match the submariners' term for a sonar pulse),
is a network scheme wherein a computer, 
given another "host" computer's Internet Protocol (IP)
address, sends an "echo request" packet to the host across the network.
If the host can be reached, it is required to send back an echo reply.
This is known as "pinging", 
and can quickly let you know if a host computer can be reached
via TCP/IP (Transmission Control Protocol/Internet Protocol),
the standard transmission protocol for the Internet.

LOOKUP:  Many IP addresses have a corresponding Domain Name System (DNS) name.
While the IP address must be in the form "xxx.xxx.xxx.xxx",
where all the "x's" are numbers,
the DNS name can have letters and numbers, such as "www.jim.com".
Given an IP addresses, lookup can be used to find the corresponding DNS name,
and vice versa.

TRACEROUTE:  Given a host's name or IP address, and using "ping", 
one can trace the route the IP packets take to get to the host.
By setting certain parameters for the ping function, each node, or internet server,
along the route can be required to reply back in sequence.
This is known as "traceroute", and allows you to watch the torturous routing
the Internet subjects your packets to.