Hello Managers.sys, Actually, I have a programming question. I have two programs that communicate via a pseudo message file and the file's length is always small compared to total memory on the system. Is there a way to convince the memory manager to keep the file in memory ? Frank Gribbin Potter Anderson & Corroon LLP * To join/leave the list, search archives, change list settings, * * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *