The LIST files contain data in columns 81- that should not be altered. At present there is no hex (ie binary, nonprintable) data in it, but there are characters whose case should NOT be altered. On the LSVSORT issue: the list MUST be sorted after a new subscriber is added, otherwise you may have distribution problems. Putting the names of all the recipients in the SIGNUP file is not mandatory however. But then it gets done for ADD and SUBSCRIBE, so it is only logical to do it for a PUT. However this is not done for an ADD, and it shouldn't be done for a SUBSCRIBE either. However, a quick look at the code showed that I forgot to put the NOSIGNUP option on the LSVSORT call in LSVSUBSC. It definitely ought to be there. Just append the string ') NOSIGNUP' to the LSVSORT call in LSVSUBSC and it will fix your problem. Eric