Copy and paste the following line into a text file. See also this faq for information on how to use the configuration file.

www.zoneedit.com

# This is configuration file for
# http://www.zoneedit.com/
# dynamic DNS service provider
#
# No change is needed in this file
#
# Enter hostname on program complete with domain name

[default]
withpass=1
host=dynamic.zoneedit.com
port=80
path=/auth/dynamic.html 

[requests]
host=%HOST%
dnsto=%IP%
username=%USER%
password=%PASS%

[result]
multilines=0
success=200
warning=201