MSI files are just the installers -- not the actual program. Once you install the program, you can remove the MSI file (or if you want to, save it for a backup.) It isn't required to run the plugin (assuming, of course, that you installed it.)
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We are like dwarfs sitting on the shoulders of giants. We see more and things that are more distant than they did,
not because our sight is superior or because we are taller than they, but because they raise us up and their
great stature adds to ours
