1)   Examine32 4.60
Examine32 Text Search is a fast and versatile text search utility. It can search both text and binary files using ordinary text, logical operators, and GREP regular expressions. Files within ZIP archives can be searched.

 2)   Desktop Search Software 1.8
Find desktop software easily retrieve text file zip achieves from email attachments or documents. It has been integrated with full text retrieval technology supported by OCR engine. It performs search directly in text including word or exact phrase.