A family of Microsoft relational database management systems designed for ease of use.
Absolutely stupid in my opinion. ADPs were very handy and we've been using them to simplify user interfaces for staff ever since MS first created Access. Just more reason why people don't want to use things like 365/hosted Office, since they keep making changes that negatively impact past creations.
Companies are going to keep running 2007/10 as long as they keep seeing stuff like this.