IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
Icon Generator - Icon Generator is a little application built on AIR that lets you generate a CS5 or Web 2.
FastIcns - DigitalWaters.net Projects - by Matteo Mecucci and Juna Salviati
icoworks - .ico editor for Windows 8 and Windows RT
Icono Maker - Icono Maker is an icon maker for Windows.
IconXP - IconXP is an icon creator to edit icons. You can make icons for windows XP with this icon program.