(Second Sight) How do I run in a window?

[predcon]

Widescreen monitors stretch out games that don't respond to GPU-scaling (i.e. with scaling turned on I should be seeing Second Sight played fullscreen in 4:3 scale with black bars on the side, but it doesn't work with this game). The next best option is to play the game in a window at it's native resolution, and it will automatically be scaled at 4:3.

Which are the correct starting parameters to add to Launch Options so the game will run in a window?