I've had an initial discussion with a c# developer for this app, and he is
unaware of any pooling, but they are using connection modules developed by
previous (and now long gone) coders. This one application is user sensitive
on the Power i side, where as everything else they develop (that I can
of) is secured by Win profile tables (by customer and levels within
customer). Tomorrow I can pursue this with the other developers.
Thanks to all for the details in sorting this out.