While we have tried to support as many platforms as possible, there are some compatibility bugs that have cropped up. The raw socket support is currently non-functional in Cygwin, AIX, HP-UX, and possibly Solaris. This will affect your ability to spoof UDP-based attacks using the UdpSourceIp environment variable. Windows users may encounter problems when using the Win32 installer on a system that already has an older version of Cygwin installed.