For the Windows UD-based agent you should simply not clone the WorldCommunityGrid install directory at all. A backup is not needed because our redundant work - voting scheme handles any member outages or problems. Furthermore, if you clone the directories and run them both, one or both of them will get disabled and need re-registration after the servers discover the clone. Each device needs its seperate unique entry in our database to keep track of what is going on. The unique id is not based on the device name, but rather a key that is kept in one of the files. Also, the files are tied together in a way that if you just copy some and not others, all of the work for that work unit will be discarded. Another post will explain the Boinc picture.