Apache shutdown unexpectedly.

[Uma maheshwari]

16:14:13 [Apache] Error: Apache shutdown unexpectedly.
16:14:13 [Apache] This may be due to a blocked port, missing dependencies,
16:14:13 [Apache] improper privileges, a crash, or a shutdown by another method.
16:14:13 [Apache] Press the Logs button to view error logs and check
16:14:13 [Apache] the Windows Event Viewer for more clues
16:14:13 [Apache] If you need more help, copy and post this
16:14:13 [Apache] entire log window on the forums