Thank you for the information and the IndexUpdater sourcecode. When I tackle the problem which requires using hooks, then I will document it in the devGuide. I have other issues at the moment (and they dont want to be solved...). -- Jean-Vivien MAURICE Elève Ingénieur Informatique et Gestion, Polytech'Montpellier (ISIM) E-mail : jvivien.m2(a)wanadoo.fr Tél. : 0046 7 62 33 20 46 Skype : jean.vivien