I've written an Debugger Visualizer for Html Agility Pack (others will follow): http://www.crawler-lib.net/visual-studio-debugger-visualizers
I know it wasn't possible to deploy visualizers as VSIX before: Deploy debug visualizer as a VSIX extension
But they have shown that Visual Studio 2012+ provides new opportunities to do this, at least for nativs /C++: https://code.msdn.microsoft.com/windowsdesktop/Writing-graphical-debugger-a17e3d75
Aside from this blog post and a lot of projects using this technique for nativs, I wasn't able to reproduce this for my visualizer. Does anybody know how to do this in VS 2012/2013 or at least additional information about the new opportunities in VS2012/2013 beyond this block post.