What's Vista SP2 Doing Currently During Shutting Down?

Hi, Can I assume these during a normal Vista Shut down?
When the user issues shut down:
1- windows sends shut down message to all desktop processes!
2- programms need not much to do close fast and windows can continue with
shut down!
3- a not responding dialog may appear for programms that need to do much and
do not interact with windows for 30 seconds
4- a not responding dialo does not appear for programms that do lengthy
operaion but through many API calls (thus windows understands that the
program is progressing with shut down normally) so Keeps desktop on for them
until they exit
5-when I see logging of it means that windows is closing Explorer.exe and
system programms related to GUI!
6-When I see shutting down windows is closing Services and then the device
and system drivers!

Am I right about all these?

Unfortunately windows does not show what it is doing currently (unlike
linux) so I have no clue especially when it takes long!
I know that if somthing goes wrong I can check log the next time windows
comes up but i may not remmeber when was the last shut down command issued!
and secondly if anything does not go wrong i do not know whats windows doing
during a shutdown in general? especially when a programm is hung and
shutting down or logging off remains for a long time and I can not decide to
press reset or not cause i dont know some critical service (I my eyes) like
SQL server is hung or some programm that its data loss may not matter to me
much!?