.
      Windows Internet Explorer . , . .
Microsoft .
<?php
      
        
        
        
      
    
 $user_agent = $_SERVER['HTTP_USER_AGENT']; 
      
        
        
        
      
    
 if (stripos($user_agent, 'MSIE 6.0') !== false && stripos($user_agent, 'MSIE 8.0') === false && stripos($user_agent, 'MSIE 7.0') === false) {
      
        
        
        
      
    
 if (!isset($HTTP_COOKIE_VARS["ie"])) {
      
        
        
        
      
    
 setcookie("ie", "yes", time()+60*60*24*360);
      
        
        
        
      
    
 header ("Location: /ie6/ie6.html");
      
        
        
        
      
    
 }
      
        
        
        
      
    
 }
      
        
        
        
      
    
?>
      
      .
: dump.ru/file/4208715
UPD Lector , WP, « IE6».