Mirabilis´s chat and messanging program, ICQ ("I seek you"), is one of, if not the most popular and downloaded programs on the internet. It´s also one of the most important programs to tweak and customize as most of you reading this use ICQ daily. The goal of this guide is to lower the amount of resources used, bandwidth taken, and loading time. Also, with a bit of luck, ICQ will be more customized for you and just look cool.