WinZip, the original and most popular compression utility for Windows, is a powerful and easy-to-use tool that quickly zips and unzips your files to conserve disk space and greatly reduce e-mail transmission time. WinZip 11.1 is available as Standard or Pro.
WinZip 11.1 is an updated version of our most recent major release—WinZip 11.0—that supports Windows Vista™.
WinZip 11.1 offers a thumbnail image view and automatic compression selection, plus improved compression for audio files (WAV) and the ability to open .BZ2 and .RAR files.
WinZip 11.1 Pro adds expanded data backup functionality and includes a new internal image viewer that allows you to browse through multiple images within the Zip file.

Spybot
- Search & Destroy detects and removes spyware, a
relatively new kind of threat not yet covered by common
anti-virus applications. Spyware silently tracks your
surfing behavior to create a marketing profile for you that
is transmitted without your knowledge to the compilers and
sold to advertising companies. If you see new toolbars in
your Internet Explorer that you haven't intentionally
installed, if your browser crashes inexplicably, or if your
home page has been "hijacked" (or changed without your
knowledge), your computer is most probably infected with
spyware. Even if you don't see the symptoms, your computer
may be infected, because more and more spyware is emerging. Spybot-S&D is FREE, so there's no harm giving it a
try to see if something has invaded your computer.