Windows: How to to stop shutdown?

You can have a BIG problem when you have automatic restart option in windows server domain set on - and you, yes, accidently click on Restart Now...

Now... there is a problem: you have open docs in Word, open Visual Studio, Eclipse, Nvu,... whatever and you even don't wanna restart the computer.

What can you do? There is a way (does not always work, so don't play with it):
Hit Windows key + R
Enter: shutdown -a
If you are fast enough before internal pointer commits suicide you can stop the shutdown process.