Source : Free On-Line Dictionary of Computing

Windows Application Binary Interface
     
         (WABI) A software package from {Sun
        Microsystems} to allow certain {Microsoft Windows}
        applications under the {X Window System}.  Wabi 2.2 runs under
        {Solaris} on {SPARC}, {Intel}, and {PowerPC}.  Wabi works by
        providing translated versions of the three core Windows
        libraries, {user.dll}, {kernel.dll}, and {gdi.dll} which
        redirect Windows calls to Solaris equivalents.  For code other
        than core library calls Wabi either executes the instructions
        directly on the hardware, if it is Intel, or emulates them,
        either one instruction at a time or by translating a block of
        instructions and caching the result (e.g. for a loop).
     
        {WabiServer} allows the Windows application and X display to
        be on different computers.
     
        {Overview (http://www.sun.com/solaris/products/wabi/)}.
     
        (1997-01-08)