XP's behaviour is interesting in this case. It's one of the few things I actually like about Vista (sue me, I like things about Vista): Vista will abort the shu

XP's behaviour is interesting in this case. It's one of the few things I actually like about Vista (sue me, I like things about Vista): Vista will abort the shutdown, but XP will hang for an unspecified length of time, when you have an event handler that makes a blocking call like `alert`.