This beta supersedes all previous betas. It is a bug fix release. A security related fix is that it will now warn if attempting to launch an encrypted executable. Other fixes include correction of broken comment switches on the command line, use of non-standard key files and some other minor changes. See change log and release notes for details. The 'Win32' installer is for 32-bit editions of Windows, and the 'x64' installer is for 64-bit editions. See http://www.axantum.com .