MixLaunch is a small utility application that can be used to launch the MixEmergency, and keep it launched. For example, if MixEmergency is closed while MixLaunch is running, then MixLaunch will relaunch MixEmergency.
To set the path to your MixEmergency application, simply drag and drop the MixEmergency application from the Finder into MixLaunch.