Ken, thank you for your answer but seems I don't get notifications on this forum... will have to look more often.
Anyway, we have the module installed on a DotNetNuke site, not sure the difference about chat room or chat messenger now...
We have to module on a page and we want to intercept the action that sends the message the user types to the server, so before it is distributed to other users.
Thank you
Vicenç Masanas
www.disgrafic.com