wine 0.9.45-0ubuntu1 (amd64 binary) in ubuntu gutsy

 While Wine is usually thought of as a Microsoft Windows emulator, the Wine
 developers would prefer that users thought of Wine as a Windows compatibility
 layer for Linux. Wine does not require MS Windows, but it can use native system
 dll files in place of its own if they are available.
 .
 This package includes a program loader, which allows unmodified Windows
 binaries to run under compatible hardware. This package also includes the
 library that implements the Wine project's free version of the Windows API,
 allowing successful running of programs ported directly from Windows.
 .
  Homepage: http://www.winehq.org/