What are some alternatives?
When comparing Copernic Desktop Search and AstroGrep, you can also consider the following products
Agent Ransack - Agent Ransack is a tool for finding files and information on your hard drive fast and efficiently.
PowerGREP - Quickly search through large numbers of files on your PC or network using powerful text patterns to find exactly the information you want. Search and replace with plain text or regular expressions to maintain web sites, source code, reports, ...
DocFetcher - DocFetcher is a portable German/English open source desktop search application.
grepWin - grepWin is a simple search and replace tool which can use PCRE regular expressions to search for...
Everything - Everything. Locate files and folders by name instantly. Everything. Small installation file. Clean and simple user interface.
FileLocator - FileLocator Lite enables you to locate files on your pc.