>>>>Check this out http://www.memail.com/fotos/Shaker.html
>>>
>>>I don't know how they do this. It locks the task until it finishes.
>>
>>I can't see any code that prevents keyboard and mouse interaction. It's a mystery. The funny part is at the bottom "Seattle Police distribute free steamed milk and espresso shots to shaken survivors" :-D
>
>I mean, it responds. However, if you try to switch task while it is running, it does not work.

Yeah, even hitting a key like F11 (full screen) is queued until the shaking stops. Strange.