This caution comes from a group of users at another forum I frequent. The latest spy-ware definitions of the Microsoft Antispyware, identifies the Quicktime uninstaller as the IBIS Toolbar. So far it only appears to affect versions, of Quicktime, earlier than 7.0. If you have removed the Quicktime uninstaller via MSAS. So far the only known remedy is to reinstall Quicktime. If anyone has more detailed information or anything else, regarding this issue please feel free to add to this thread.
Be (MSAS) Safe
Da Animal