register_activate_process hook... when is it hit?

[Ronin Storm]

I'm working on a plugin that is using the register_activate_process hook but I'm finding that it is only hit intermittently in vB 3.6.2. I'm using it to automatically queue a user, based on a registration setting of a user profile field, in the authorisation queue of a secondary usergroup.

Some users have successfully been queued prior to upgrading from 3.6.1 to 3.6.2. However, since upgrading only 1 in around 8 or 10 tests has successfully queued. I'm fairly happy that the code does what I intend for it, I'm just not certain if I'm using the right hook.

So, when does register_activate_process fire?

Alternatively, when does register_activate_start fire and might I be better off using that one?

Couldn't find any documentation on this so if there's a document I could read I'll go do that instead...

[Ronin Storm]

Sorry to post a reply to my post so quickly... but I forgot to add that if I check the useractivation table I find that there's still an entry in there for the user that has successfully activated so maybe this is something I've fubared in my plugin...?