Typing in a web url and not specifying a page and having it show up correctly

I am getting ready to rewrite our web site.

We use IIS and have defined in there default.asp as our default page.

So when I type www.mydomain.com - it automatically redirects to www.mydomain.com/default.asp and it works fine. Same thing for sub folders. When I type in www.mydomain.com/users it automatically redirects to www.mydomain.com/users/default.asp and the page appears fine.

My question is - is it possible to be able to go to the url line in my browser and type www.mydomain.com/users and it automatically goes to the default.asp page and show in the URL area as www.mydomain.com/users without it showing up as www.mydomain.com/users/default.asp?

If so, what would I need to do to make this happen?

Thanks so much - in advance.