What are some alternatives?
When comparing Clic (Vintage) by BlaizEnterprises.com and IconXP, you can also consider the following products
Icono Maker - Icono Maker is an icon maker for Windows.
Icon Generator - Icon Generator is a little application built on AIR that lets you generate a CS5 or Web 2.
IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
RealWorld Icon Editor - Create Windows icons and Mac OS icons from images and 3D models in an integrated icon maker.
icon sushi - @icon sushi is icon converter that supports xp icons, vista icons, bmp, png, psd, exe and icl.
icoworks - .ico editor for Windows 8 and Windows RT