Hi,

I've been racking my brain without success (writer's block combined with inexperience?).

I need to append a slash (only) if there isn't already a 3-4 letter extension. I'm using IIS7's url rewrite module.

For example:

http://mydomain.com/mypage becomes http://mydomain.com/mypage/

While http://mydomain.com/mypage1.aspx or http://mydomain.com/mypage/ are left alone.

Anyone have any pointers?