Nested "fglgo"

Hello everyone ! Is there any charitable soul that have an anwser for these 2 questions ? 1) I am using an old version of INFORMIX-RDS 4... under SCO UNIX 3.2.5. The size of .4gi is getting very big. I would like to know if there is a way to avoid the "clear screen" that happen when you calla program from another one, like: main ... run "fglgo ..." ... end main 2) A parent process can communicate with its child through parameters. How can communicate the child with its parent ? One option could be through a file but it would be slow. A second one would be to include the share memory functions (shmget, etc) in the runtime. Do you think it's worth trying Thanks in advance