find duplicate files Duplicate File Detective enables you to find all types of duplicate files on your computer, and process the found items by moving them, (zip) archiving them, or deleting them. It features a multi-threaded file system scanning engine with support for multiple local and network file system paths, as well as filter options to exclude/include specific files and file types. The results are presented in a list and you can use "Smart Marking" to mark the items to be processed, or manually check the files in the list. Additional features include command-line support, file hash calculator, duplicate file reports and more. Duplicate File Detective supports CRC32, Adler32, MD5 and SHA1 comparison hash types. Copyright Snapfiles.com
Trial Limitations: 15 day trial. Fully functional.