Dock Restarter is designed to perform a single, much-needed function for OSX users, hard restarting your dock if a problem develops. While not a common problem, it happens often enough to be frustrating for users with older Macs, or those who run multiple apps at a time. Whether due to too many apps opening or because of a performance issue in the OS, pending an update for a specific app, a dock freeze can take seconds or minutes to clear. This app fixes that.
Dock Restarter opens from a DMG and requires the usual security override to get running in Mountain Lion. For this reason, it is a little frustrating to set up, but once running, it runs smoothly. Just open the app in the DMG and it will automatically restart your dock for you. The screen will flash and all of your apps will disappear for a split second before returning. If there are no problems, you won't notice anything other than the restart animation. If there is a problem, it should reset and stop the problem, potentially force-quitting the app that is causing it.
While there are other ways to get around a dock freeze, including force quitting, Finder or whichever app is causing the freeze up, Dock Restarter is a nicer, faster, and not quite as intense option for shutting down the dock without shutting down the apps in it. If you have frequent dock freezes and are tired of waiting or shutting down to get past it, download this free app -- it works well for what it promises.