User-agent: *
Disallow: /mexico/foro/

User-agent: Slurp
Disallow: /mexico/foro/
Disallow: /mexico/foro/*.php

User-agent: Googlebot
Disallow: /mexico/foro/
Disallow: /mexico/foro/*.php
Allow: /mexico/foro/index.php

User-agent: msnbot
Disallow: /mexico/foro/
Disallow: /mexico/foro/*.php