Create and Edit Icons with Greenfish Icon Editor
Greenfish Icon Editor is a free powerful icon, cursor, animation and icon library editor. The program also supports image layers and can be used to create Vista compatible and 32 bit icons up to 256×256 with the help of a variety of drawing and selection tools.
The Layer support along with advanced selection handling makes it a really professional and unique freeware tool for designing small pixelgraphic images. It also supports Image Filters like Bevel, Drop Shadow and Glow. It also allows you to edit icon libraries and resource files, and lets you replace icons in executable files. The program has got an easy to use interface. It is very lightweight and requires no installation. You can use the program to open/save ICO, CUR, PNG, XPM, BMP, GIF (including animated) and JPEG formats as well as ANI files and animated cursors. Some of its other features include file drag and drop, gradient styles for filling shapes and lots more. You can even extract it in the USB drive and run it from there.
The program is a freeware and runs on all the version of Windows.