How to have Windows 10 open VMOD files as if they were ZIP files

By default VMOD (module) files are sent to Vassal to open. But if you would like to have Windows treat VMOD files as if they were ZIP files (so that double-clicking them opens them like a directory, and you can insert/remove components directly without renaming them to ZIP's), do the following: assoc .vmod=CompressedFolder
 * Right click "Start" button in lower right
 * Select "Command Prompt (Admin)"
 * On the command line, type:
 * Restart your system.

NOTE - this means that to open vassal modules to play them, you will need to launch Vassal and open them there (double clicking them now opens them as if they were zip files, instead of launching Vassal).