dnGREP - dnGrep allows you to search across files with easy-to-read results.
grep - grep is a command-line utility for searching plain-text data sets for lines matching a regular...
AstroGrep - AstroGrep is A Microsoft Windows GUI File Searching (grep) utility.
Agent Ransack - Agent Ransack is a tool for finding files and information on your hard drive fast and efficiently.
DocFetcher - DocFetcher is a portable German/English open source desktop search application.
SearchMyFiles - Alternative to the standard Search For Files And Folders module of Windows. Duplicates search is also supported.