on first computer - plugin work correctly.Plug icon in cockpit - after icon hiding - plugin work again Second computer - plugin does not work. There is no plug icon in the cockpit. Both computers with Windows XP 32bit
Depends what the plugin is and what it needs. You haven't named one so I'll guess it might be your own, in which case I'd check the build settings. It's easy to get carried away changing settings and reducing the size only to find some people can't run it - as I did. Otherwise, check the plugin's requirements, as windows itself is often not enough.