No there isn't.  DNN would beneift greatly if there were system events for :

new page creation/deletion

new module instance creation / removal / deletion

new user creation / deletion

By event I mean some sort of system callback that you could subscribe your module to.  So when the event happened, you could have your module respond to that event.  Sort of the the IMC in a way, but different.

This would greatly improve module developers ability to do things in response to user actions in the core.  It would probably need to be multi-threaded so that a badly performing module would not grind the system to a halt if they took too long to respond from an event.  But the idea would help.

To solve your problem, there is one way to do it : database trigger on the Module table.  But you *shouldn't* be putting triggers on the core tables.

I think i need to flesh out the idea more, and get my head across traps and problems, but I've had the basic idea for a while.   I'll experiment around a little, and if I come up with something solid I'll log it in Gemini.