BEGIN {
  eval 'require Win32::Internet';
  unless ($@) {
    require MyWin32Wrapper;
    MyWin32Wrapper::->import();
  } else {
    require Net::FTP;
    # Net::FTP::->import(); # OO interface - no need to do this
    require MyUnixWrapper;
    MyUnixWrapper::->import();
  }
}