Freezes 2017 when opening a Unity project

[jbienzms]

When using Visual Studio Tools for Unity and opening a C# script file from within the Unity editor, Visual Studio 2017 will freeze with this extension enabled. The "Loading Solution" progress bar spins forever and tapping on Visual Studio causes the window to turn white (unresponsive).

If you attach to the Visual Studio process and change the current thread to the Main thread, you'll see that SnipptDesigner is stuck trying to show its main Form().