LiquidIcon XP is one of the most popular Icon Editors in the world. Best of all, it's completely FREE (no Adware, Spyware, Guaranteed), portable and lightweight, and works on every version of Windows!
Extract icons from EXE and DLL files
The Get Icons application was designed to be an icon extractor program that will let you get icons from EXE and DLL files.Discontinued
The program is no longer updated. Last version, 2.5, released in September 2008, can be still downloaded from the official website.
VariIconsRevolve is an Icon and Small graphics editor suite which allows you to create and modify icons with frames up to 256x256 size using 22 pixel and vector tools, effects and a variable gradient filling. now localized for English and German!Discontinued
The project is no longer updated. Last version, released in January 2011, can be still downloaded from SourceForge
VariIconsRevolve vs Greenfish Icon Editor Pro opinions
It is open source like Greenfish Icon Editor Pro.
The icoutils are a set of command-line programs for extracting and converting images in Microsoft Windows(R) icon and cursor files. These files usually have the extension .ico or .cur, but they can also be embedded in executables and libraries (.dll-files).
IconDeveloper is a program that makes it very easy to create your own Windows icons. Intead of trying to include a drawing package, IconDeveloper instead allows users to just import images made by other programs and turn them quickly and easily into icons.