Hi Mike thanks for your (very) valuable feedback; the 'background problem' can arise because some of this 'notifications' can be money-related (Money on place/The delivery took the money/Money at warehouse/Money left place X/...), and of course, this could be very atractive to someone with 'not so clear intentions', so the security is important ... we consider to develop a HTML page (no Webster/PxP+) and refresh it every 5 minutes or so, then call the Webster+page, if there changes, show the changed, update the results and be back to the 'wating page', but still we're just gathering info; my first goal was to try to keep the development with an all-pxplus solution, but perhaps using a mix one should get better results.
Jean H//