What are some alternatives?
When comparing Clic (Vintage) by BlaizEnterprises.com and RealWorld Icon Editor, you can also consider the following products
Icono Maker - Icono Maker is an icon maker for Windows.
IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
IconXP - IconXP is an icon creator to edit icons. You can make icons for windows XP with this icon program.
BeCyIconGrabber - BeCyIconGrabber is a very small app that extracts icons contained in resource files (DLL, ICL, OCX, CPL, SRC, ICO and CUR). It also enables saving them singly
IconWorkshop - Application to create and manage software icons. A must for developers.
Icon Generator - Icon Generator is a little application built on AIR that lets you generate a CS5 or Web 2.