How Can I Show Hidden FarSync Flexes in Device Manager?
By default Device Manager does not show hidden (no longer attached) FarSync Flexes. Device Manager can be made to show hidden devices by adding an environment variable DEVMGR_SHOW_NONPRESENT_DEVICES and assigning it a value of 1. To add an environment variable right-click (My) Computer | Properties and select Advanced | Environment Variables (ensure that it is added as a system variable). When Device Manager is restarted, and View | Show Hidden Devices is selected, any hidden devices will be shown. And, for instance, unattached Flex devices can then be uninstalled if required.