I wrote a system to do this when at Amdahl in the late 1980s, and I'm certain I've described it here before. The extra was using SIM/PC to insert commands into the PC from a SAS programme running on the mainframe.
I stuck a DIR to a PC file down to DOS, uploaded the file, did a PDS List on the mainframe, compared dates to build two lists - one of "newer on mainframe" and one of "newer on PC" then executed both to "synchronise" the two. Replication, once Lotus thought of it. SIM/PC would shift variable length records around, so I could use IEBCOPY rather than IEHMOVE, which I have always loathed. Anyway, I'm pretty sure there's a fuller description of the system in the archives here. -- Phil Payne http://www.isham-research.co.uk +44 7833 654 800 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html