This window (View
=> Port Reference)
displays a table of port numbers and corresponding service names.
This reference is obtained from the SERVICES file installed by
Windows. You can find the SERVICES file in the
\system32\drivers\etc folder. You can manually edit this file if
you want to add more ports/service names. CommView reads this file
on start up, so your changes to the file will be displayed only
after you restart the program.