A common way to add plugin's to a Top-level navigation in WordPress. Introduced to make adding plugins to a universal location in WordPress 2.7.
This plugin is discontinued due to unforeseen issues with WordPress, Any plugin requiring MultiPlug has since been updated and no longer relies on this hunk of junk!
MultiPlug is a small plugin which allows other plugins, preferably ones made at Meandmymac.net by Arnan de Gans, to hook into the WordPress dashboard. Introduced to make adding plugins to a universal location in WordPress 2.7 more easy and logical.