From Softi Software:
FreeOCR is a free Optical Character Recognition Software for Windows and supports scanning from most Twain scanners and can also open most scanned PDF's and multi page Tiff images as well as popular image file formats. FreeOCR outputs plain text and can export directly to Microsoft Word format.
Free OCR uses the latest Tesseract (v3.01) OCR engine. It includes a Windows installer and It is very simple to use and supports opening multi-page tiff documents, Adobe PDF and fax documents as well as most image types including compressed Tiff's which the Tesseract engine on its own cannot read .It now can scan using Twain and WIA scanning drivers.
What's new in this version:
Version 4.2 adds: Multi page Twain Scanning, OCR whole document in one go, Uses Tesseract V3 for higher accuracy, Windows 8 compatible, Automatic updater, Text post processing.