Languages: En
Compatibility: Windows XP/Vista/Seven
License: Free for Home Use

Author's description:

• ▪ Search in single directories or directory groups
• ▪ Search and replace in multiple files
• ▪ Supports simple or regular expressions for filenames and file contents
• ▪ Live preview of file contents, without the need to rescan the file system
• ▪ Live preview of images
• ▪ Windows Explorer integration (by clicking the search button, or pressing F3)
• ▪ Search using multiple file patterns
• ▪ Save/Load search criteria
• ▪ Full unicode support (filenames, file contents, search results, search and replace)
• ▪ Refine search mode (search within catalogs or existing results)
• ▪ Copy/Move/Delete/Rename files and/or directories
• ▪ Drag-drop support, e.g. drop files in explorer windows
• ▪ Can be used as a visual replacement for the command-line grep command

Website: http://www.saleensoftware.com/ScanFS
Download page: http://www.saleensoftware.com/ScanFS

My Opinion:

From the same authors of FilePro (already in LiberKey), ScanFS is a great tool to find text inside any type of file. For instance, I was searching my work computer for any file that had my name in them (in case I left something private in them). ScanFS found and listed all files in the specified folders, and shows a preview of the files, as well as other tools.

One awesome thing is that it works with regular expressions as well!