Apache Friends Support Forum

This is the error list from the buffer:

2:04:17 PM [main] Initializing Control Panel
2:04:17 PM [main] Windows Version: Windows Vista Home Premium SP2 64-bit
2:04:17 PM [main] XAMPP Version: 1.8.3
2:04:17 PM [main] Control Panel Version: 3.2.1 [ Compiled: May 7th 2013 ]
2:04:17 PM [main] Running with Administrator rights - good!
2:04:17 PM [main] XAMPP Installation Directory: "c:\xampp\"
2:04:17 PM [main] Checking for prerequisites
2:05:12 PM [main] All prerequisites found
2:05:12 PM [main] Initializing Modules
2:05:12 PM [Apache] Problem detected!
2:05:12 PM [Apache] Port 80 in use by "Unable to open process" with PID 4!
2:05:12 PM [Apache] Apache WILL NOT start without the configured ports free!
2:05:12 PM [Apache] You need to uninstall/disable/reconfigure the blocking application
2:05:12 PM [Apache] or reconfigure Apache and the Control Panel to listen on a different port
2:05:12 PM [main] Enabling autostart for module "Apache"
2:05:12 PM [main] Enabling autostart for module "MySQL"
2:05:12 PM [main] Enabling autostart for module "Tomcat"
2:05:12 PM [main] Starting Check-Timer
2:05:12 PM [main] Control Panel Ready
2:05:13 PM [Apache] Autostart active: starting...
2:05:13 PM [Apache] Problem detected!
2:05:13 PM [Apache] Port 80 in use by "Unable to open process" with PID 4!
2:05:13 PM [Apache] Apache WILL NOT start without the configured ports free!
2:05:13 PM [Apache] You need to uninstall/disable/reconfigure the blocking application
2:05:13 PM [Apache] or reconfigure Apache and the Control Panel to listen on a different port
2:05:13 PM [Apache] Attempting to start Apache app...
2:05:14 PM [mysql] Autostart active: starting...
2:05:14 PM [mysql] Attempting to start MySQL app...
2:05:15 PM [Tomcat] Autostart active: starting...
2:05:15 PM [Tomcat] Attempting to start Tomcat app...
2:05:15 PM [Apache] Status change detected: running
2:05:15 PM [mysql] Status change detected: running
2:05:18 PM [Apache] Status change detected: stopped
2:05:18 PM [Apache] Error: Apache shutdown unexpectedly.
2:05:18 PM [Apache] This may be due to a blocked port, missing dependencies,
2:05:18 PM [Apache] improper privileges, a crash, or a shutdown by another method.
2:05:18 PM [Apache] Press the Logs button to view error logs and check
2:05:18 PM [Apache] the Windows Event Viewer for more clues
2:05:18 PM [Apache] If you need more help, copy and post this
2:05:18 PM [Apache] entire log window on the forums
2:05:43 PM [Tomcat] Status change detected: running
2:05:49 PM [Tomcat] Status change detected: stopped
2:05:49 PM [Tomcat] Error: Tomcat shutdown unexpectedly.
2:05:49 PM [Tomcat] This may be due to a blocked port, missing dependencies,
2:05:49 PM [Tomcat] improper privileges, a crash, or a shutdown by another method.
2:05:49 PM [Tomcat] Press the Logs button to view error logs and check
2:05:49 PM [Tomcat] the Windows Event Viewer for more clues
2:05:49 PM [Tomcat] If you need more help, copy and post this
2:05:49 PM [Tomcat] entire log window on the forums