XAMMP Windows Start Problem : Error: Apache shutdown unexpectedly.

XAMMP startet nicht:

14:08:56  [mysql] 	Status change detected: running
14:09:01  [Apache] 	Attempting to start Apache app...
14:09:01  [Apache] 	Status change detected: running
14:09:02  [Apache] 	Status change detected: stopped
14:09:02  [Apache] 	Error: Apache shutdown unexpectedly.
14:09:02  [Apache] 	This may be due to a blocked port, missing dependencies, 
14:09:02  [Apache] 	improper privileges, a crash, or a shutdown by another method.
14:09:02  [Apache] 	Press the Logs button to view error logs and check
14:09:02  [Apache] 	the Windows Event Viewer for more clues
14:09:02  [Apache] 	If you need more help, copy and post this
14:09:02  [Apache] 	entire log window on the forums