Paraben-s Text Searcher Description:

Complete text string searches for entire drives searching over 230 file types as well as slack and unallocated space. Using search indexes shortens search times. Compressed indexes are 30-60% the size of the original data. Supports complex searching queries through Boolean expressions. Supports multiple languages and has the ability to customize languages. Designed for Computer Forensic Examination so your searches are efficient and effective. Supports list searching for a single query list load. Easy to use interface and report output. When you're looking for a needle in a haystack, this tool is for you.