Excerpted from the LISTSERV README file you get with the code: LISTSERV's A-disk will contain, after installation, a file called LISTSERV FILELIST which is of crucial importance and should not be overwritten. If the userid of your server is LISTSERV and you use FILELIST rather than FLIST to view files, be aware of the fact that the FILELIST command may, in certain cases, gladly overwrite this file without prompting you for confirmation nor even notifying you. In particular, typing SAVE or FILE while within FILELIST is a no-no. You have 3 options: 1. Don't use FILELIST. 2. Try to convince IBM to fix FILELIST (good luck). 3. Make a FILELIST EXEC on LISTSERV 191 that makes a copy of the file before calling IBM's FILELIST if the file was still intact, or prints an error message if it got corrupted. Since I never use FILELIST (I can't stand it), I wasn't aware of the problem until it was too late to change the name. Eric