my @args ;

   if ( @_ == 1 && ! ref $_[0] ) {
      if ( Win32_MODE ) {
         @args = ( [ qw( command /c ), win32_parse_cmd_line $_[0] ] ) ;
      }
      else {
         @args = ( [ qw( sh -c ), @_ ] ) ;
      }
   }
   elsif ( @_ > 1 && ! grep ref $_, @_ ) {
      @args = ( [ @_ ] ) ;
   }
   else {
      @args = @_ ;
   }