To install EZIRC just run SETUP.CMD. And follow the on screen instructions.

===========================================================================

It will install to the current path, or allow you to enter a path.
It will also ask you to enter your UserID, Realname and NickName.

Your UserID is your ID on your ISP.
IE if your email address is xyz@provider.com
   your ID is xyz
NOTE: If you have an SET USER= in your config.sys it will load it.
      SET USER should only contain you ID not your full email address.

The Realname field is what ever you want. A typical one might be your
Firstname and City.  ie  Bill (Washington)

Your NickName is again what you want.  It is a handle or alias you will be
know as.  Try to be original, and if you find your nick in use when you get
on IRC, pick a new one.  Nicknames are a MAX of 9 char, and can not contain
spaces. For a space, use a '_'.  Don't use the | char, as it is used in
scripts to return multiple commands and could cause you problems.

NOTE:
After Install, read the Online DOCS that will be installed to your desktop.
They contain additional INSTALL Notes.