BYE520 was written to enable BYE510 sysops to update thier RCPM systems to use YBBAT. It incorporates the following changes: 1. Realtime event scheduling 2. TSYNC detection (passes control to RECVMAIL) 3. Realtime clock dislay (if desired) 4. National Mail Hour support It is available from The Black Box, 106/601, 713-480-2686 (PCP TXHHOU) ------ NODEDIFF.PAS was written to simplify the task of updating a .BAT file every week to update the nodelist. It requires a ROS.CLK insert. It simply rewrites the Z.BAT file every week (run it on Friday, the day the nodelist is generated), and then the Z.BAT can be scheduled to run later. ------