Launching executable application inside VTRoot. Is it implicitly Sandboxed?

I’m running an installer inside the Sandbox (right click and Run in Sandbox) which deploys its contents including the executable application inside VTRoot.

Now to run the actual application I’m going into VTRoot and double click on the .exe which launches it.
The question is , is that .exe running implicitly Sandboxed or not? What is the correct way of doing it?

thanks