Doors

Doors is a graphical operating environment that runs over Windows. It massively changes the user interface, and is designed to be easier to use. Microsoft developed Doors in the late 90s as a successor to their failed Microsoft Bob operating environment.

Doors replaces the start menu and desktop with a street full of houses. Each house is labeled with a program; and when you click on one of the doors, it shows a preview of the program as well as a description of it. The user can click on it again to open the program. It comes with other features that make using Windows easier.

History
Microsoft initially developed Doors in the late 90s as a successor to their failed Microsoft Bob operating environment. Doors was released in 1999; as Doors 1.0, and was compatible with Windows 98. Doors was incredibly successful. Doors 1.1 was released in 2000 and was compatible with Windows ME, but not Windows 2000 as Doors was only intended to be used for home usage. Doors 2.0 was released in 2001 for Windows XP, and was the first version of Doors compatible with an NT operating system. In 2007, Doors 3.0 was released for Windows Vista. Doors 3.1 was released for Windows 7; Doors 3.2 for Windows 8 and Doors 3.3 for 8.1. Doors 4.0 was released for Windows 10 in 2016, and has received a new update every year. The current Doors version number is 4.4.