To create your own environment shell, merely rename your stand-alone Pascal
program to SHELL."something". Once your program is named SHELL.xxx, it
appears in the environments window. You may then either start your program up
from the environments window, or else set the default to have your program
automatically start up when you first power up.
I recommend using Quick Port, now that it's available with Pascal release
3.0, rather than creating a shell for your program. Quick Port is much more
vesatile, allowing you to cut and paste to the other Lisa applications, print
using the Office System print routines, and so on.