[en] For more than one year the CLEO III experiment at the Cornell electron positron storage ring CESR has accumulated Physics data using a 4 layer silicon vertex detector and a novel ring image Cherenkov detector, along with a conventional Driftchamber, E.M. calorimeter and muon chambers. By the time of CHEP 2001 the experiment has accumulated 10 fb^-1 of data. The readout and monitoring systems control ca. 400000 electronic channels. Detector configuration, data quality and component monitoring, run control are only some of the Slow Control tasks that have to be performed. Deploying industry standards such as CORBA (inter-platform communication), Java (remote access via Web browser) and Objectivity (event and constants database) as building blocks of the computer network has been of central importance. Object oriented design has enabled the seamless integration of the many individual components. In our presentation we will describe experiences with this distributed control system and give a report of the measures taken to obtain a high system availability