Ive already done this. The thing is ....... This option in DLE:

SEO type used:

Type 1 ...... http://www.yoursite.com/id-article_name.html
Type 2 ...... http://www.yoursite.com/category/sub...icle_name.html
Type 3 ...... http://www.yoursite.com/2008/04/02/article_name.html

When i choose Type 1 it automatically add the .html extension. I'm wondering how do u edit "Type1" so it wont add the .html extension?

Thanks