Multi String Replacer - Replace multiple strings at once!
DocFetcher - DocFetcher is a portable German/English open source desktop search application.
Batch Word Replace - Replace text in, add or remove content, and edit thousands of Word documents in doc and docx formats, PDFs, RTF documents, and other text documents.
SearchMyFiles - Alternative to the standard Search For Files And Folders module of Windows. Duplicates search is also supported.
Search & Replace Master - Search & replace the text in your files in seconds.
Recoll - Recoll is a desktop full-text search tool. Recoll finds keywords inside documents as well as file names.