RewriteEngine On
RewriteBase /admin/
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteCond %{REQUEST_URI} !(.*?)/$
RewriteRule ^(.*)$ http://www.hdtechsolution.com/wow/admin/ [L,R=301]
RewriteRule ^([-a-zA-Z0-9_]+)/?$ $1.php [L,QSA]
DirectoryIndex index.php