http://
msdn.microsoft.com/en-us/library/aa372721(VS.85).aspx
Zitat:
The system allows approximately two seconds for an application to
handle this notification. If an application is still performing operations after its time allotment has expired, the system may interrupt the application.
Windows Server 2003 and Windows XP/2000: Applications are allowed up to 20 seconds to respond to the PBT_APMSUSPEND event.
