Project Astoria, also known as
Windows Bridge for Android, is a toolkit that allows running Android apps on Windows 10 Mobile devices.
The naming convention for latest discovered files is very similar to the Android Subsystem files from
Project Astoria, i.e.
ADss.sys.
So, the "LX" in these name, however, can only be taken for one thing, and that is LINUX, which suggests the Windows 10 will have access to a Linux subsystem also.
Why a Linux Subsystem?
Since Windows 10 has been introduced as a Universal Operating system for all devices, so it might be possible that Microsoft wants to expand Project Astoria from mobile devices to desktop users.
If this comes to be true, adding a Linux subsystem will be beneficial in case Microsoft has plans to offer support for Linux applications, especially servers related technology and software.