The !System directory contains relocatable modules shared by various
Applications Suite programs, held in the directory !System.Modules. You will
not need to take any special action to load these modules: they will be
loaded as required by applications, provided a directory display containing
!System has been opened at some stage.

If the error message "Filing system or path 'System:' not present" appears
when you are using an Applications Suite program, you should open a
directory display containing !System and then try the operation again.

If an error message of the form "You need some-module x.xx or later" appears
when you try to run an application then the directory !System.Modules does
not contain a sufficiently up-to-date version of the relocatable module
"some-module".  If this version of !System is used with a machine running
RISC OS 2 this will probably be because !System.Modules does not contain the
module at all.  In this case it will be necessary to add relocatable modules
from the RISC OS 2 !System to the Modules directory in this !System - copy
the RISC OS 2 !System.Modules directory into the RISC OS 3 !System directory
(the directory containing this file).