RE: Best way of using Service programs.

 >> Each time I add a new procedure to the service program, the 
 >> copy book changes and as such I have to recompile all of my
 >> programs that use this. 

Why?  There's no need to recompile because you have added a proto to the
source unless you are using the new subproc or change the interface for one
you do use.  The compiler simply "throws away" any prototypes that are not
used - and those that are used are only used to validate the calls anyway.

 >> ... I feel the best way to go might be to not use copybooks.

Noooooooooooo!!!!!!!! Don't do that.  The only thing that will guarantee is
that programmers will "fix" problems with a call to a subproc by changing
its proto.  Which of course does nothing to fix the problem as the subproc
still expects the defined set of parms.  Then you'll get someone adding
CONST to the copy of the proto in their program when it is not on the PI
etc. etc.

Jon Paris