Desktop Window Manager

The Desktop Composition Engine (or DCE) was a theme rendering engine used in Windows Longhorn.It is also present in 3683, but is heavily broken and buggy. Starting with 4008, DCE only provides transparency. It synchronised with WinFS, Avalon and other internal Windows databases, as well as providing visual effects. Starting with 4066, DCE is renamed to DWM.

4015dce.png|DCE in 4015