It looks like Microsoft has updated Windbg for Windows 10, one of the new features is support of Visual Studio’s NatVis expression model:
dx (Display NatVis Expression) – Describes the new dx debugger command, which displays object information using the NatVis extension model and LINQ support.
New commands that work with the NatVis visualization files in the debugger environment.
.nvlist (NatVis List)
.nvload (NatVis Load)
.nvunload (NatVis Unload)
.nvunloadall (NatVis Unload All)
https://msdn.microsoft.com/en-us/library/windows/hardware/mt219728%28v=vs.85%29.aspx
