GConvert is the king...makes cursors too
GConvert is a full-featured icon toolkit that everyone who likes icons should use: with it you can extract, view, create, edit, manage & convert icons without requiring any additional tool or knowledge.
GConvert extracts icons from files and displays them in a list: you then select the icon you want and it can converted to the format of your choice. GConvert reads any icon files such as executable, DLL, ICL, OCX, VBX, CPL, BPL, NIL, IL, SCR, CUR, ICNS, ZIP, RSRC files and allows you to save extracted icons as icon, bitmap, PNG, Adobe Photoshop PSD, and many other popular formats (JPEG, GIF...); copy them to the Windows clipboard or drag/drop them for direct use into your applications, documents, Web pages...
Get the latest (shareware) version (4.1) at *www.gdgsoft.com/gconvert/