Convert htaccess to web.config

Hi all, how can i convert this htaccess to web.config?

ErrorDocument 404 /index.php

DirectoryIndex index.php

<IfModule mod_rewrite.c>
  RewriteEngine on
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteRule ^(.*)$ index.php?/$1 [L,QSA]</IfModule><ifModule mod_headers.c>
   Header set Access-Control-Allow-Origin: http://globaltradearg.com</ifModule><IfModule !mod_rewrite.c>
ErrorDocument 404 /index.php</IfModule>

Thank you in advance!