Description: Providing feedback via synthetic speech and Braille, NVDA allows blind and vision impaired people to access and interact with the Windows operating system and many third party applications.
Download NVDA Portable 2009.1 Development Test 1 [10.6MB download / 41.2MB installed]
NVDA isn't completely portable: it leaves some files in the temporary storage directory. Although the files are deleted when the computer restarts, the fact that files remain means NVDA can never be an official PortableApps.com release. Unfortunately, nothing can be done about cleaning up the files before a computer restart, since forcing the files to delete could cause system instability.
Development Test 1 (2010-02-12): Initial release