Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
The Silver Searcher - A code searching tool similar to ack, with a focus on speed.
Double Commander - Double Commander is a cross-platform open source file manager with two panels side by side.
grep - grep is a command-line utility for searching plain-text data sets for lines matching a regular...
XYplorer - File Manager for Windows
ack - Ack is designed as a standalone (one perl file) replacement for 99% of the uses of grep.