>Stan, you don't even have to go with the UDC. You can LISTFILE >/ACCOUNT,8 to see how many logged on to that account. This works for >groups also, LISTFILE /SYS/PUB,8 to see who's logged into the PUB group >of the SYS account. >John Zoltak >North American Mfg Co <snip Terry's and Stan's text> John, The listfile /MPEACCOUNT/MPEGROUP,8 does not give accurate results. It may be more an indication of how many files within that account/group are open than how many mpe users are logged into that group/account. See below: <SYS>:LISTFILE /VXLT/DB,8 ******************** FILE: /VXLT/DB/ 3 Accessors(O:3,P:3,L:0,W:0,R:3),Share #S2825 HT09179,MGR.VXLT P:3,L:0,W:0,R:3 REM : 127.0.0.1 <SYS>: Even Stan's suggestion may not be entirely accurate (He did indicate YMMV) if you have MPEX in your site. It seems for each job/session 'JSMAIN', 'CI' and 'main.pub.vesoft' open up the UDC files. Regards Paul H. Christidis