Also: * Windows POSIX Subsystem: WSL has similar features, but not exact what the POSIX Subsystem is. * Windows OS / 2 Subsystem: Killed. * Multipoint Server

Also: * Windows POSIX Subsystem: WSL has similar features, but not exact what the POSIX Subsystem is. * Windows OS / 2 Subsystem: Killed. * Multipoint Server: Killed in server 2016. * Hyper-V RemoteFX * WDS boot.wim deployment: Killed in server 2022 and Windows 11, although MDT provides a much better solution. * TFS: MS wants you to use Azure DevOps. * Hyper-V Server: The free ESXi alternative. MS wants you to use Azure, so it is killed with the release of server 2022. * Microsoft Security Essentials: Killed in Jan. 2020, and its signature updates will stop in 2023. * Windows CE: Replaced by Windows IoT * Aero: Such a beautiful effect. Killed in Windows 8.