SwiftSearch - SwiftSearch is a lightweight program whose purpose is to help you quickly find the files you need...
SearchMyFiles - Alternative to the standard Search For Files And Folders module of Windows. Duplicates search is also supported.
Everything by Voidtools - Everything. Locate files and folders by name instantly. Everything. Small installation file. Clean and simple user interface.
regexxer - regexxer is a nifty GUI search/replace tool featuring Perl-style regular expressions.
Agent Ransack - Agent Ransack is a tool for finding files and information on your hard drive fast and efficiently.
Advanced Recent Access - Advanced Recent Access is designed to see more properties of your recent used resources (files and directories). Key features: can see more properties of the recent resources, such as path, size, type, date modified and date created. And more.