Small & simple utility that search duplicated (by contents) files in the folder and all its subfolders or on the whole computer when the folder path is undefined. Duplicated files can be deleted. Search inside zip-archives too.
Requirements: Any OS(Windows,Unix X-window,...) + Java 1.5 or higher, which you can free download from www.java.com. Not for mobiles.
Launch this utility by double click the file(in explorer) or call "java -jar duplicates.jar".