standard version - supports .txt, .doc, .html, .rtf, .xls, .pdf formats
- option to add a custom filename extension

professional version finds files in:
- .txt, .doc, .html, .rtf, .xls, .pdf formats
- .chm, .zip, .rar archives
- option to add a custom filename extension
- searches within local network shared folders or network mapped drives
- morphological support