There were tools that came with RSView32 that could lock down the application as well as attempt to secure the Windows operating system it is running on. You could disable access to the start menu/task bar and windows key with one or more of those utilities.
As for the application itself, I think that you could block access to the manager menu (ctrl + p) with a setting in RSView32 or one of those utilities.
Also, I think that RSView32 was sold as a Runtime only as well as a "works" (development) license. My memories are fuzzy, but we do have a couple of customers using it, so I occasionally have to get in and poke around.