Apache Friends Support Forum

Installation and operation has been disastrous. Tried several times to install and run and continually get the Port 80/PID 4 error in Apache Control Panel. Have completely removed Skype from system and rebooted (cold start). Completely removed XAMPP and rebooted with essentially same message. Am not a Windows Tech and really don't want to fool around with changing things without exact instructions which do not seem to be provided in this forum. Below are screen shots/copied text from Control Panel. What to do?

Control Panel info:
XAMPP Control Panel v3.2.1
Red X for Apache, no PID or Port, Clicking Start regurgitates the 'error message': Apache shutdown unexpectedly, etc, etc.
Green Check for MySQO, no PID or Port
Red X for File Zilla
No Check for Mercury
Red X for Tomcat


1:51:46 PM [main] Initializing Control Panel
1:51:46 PM [main] Windows Version: Windows 7 Professional SP1 64-bit
1:51:46 PM [main] XAMPP Version: 5.6.12
1:51:46 PM [main] Control Panel Version: 3.2.1 [ Compiled: May 7th 2013 ]
1:51:46 PM [main] Running with Administrator rights - good!
1:51:46 PM [main] XAMPP Installation Directory: "c:\xampp\"
1:51:46 PM [main] Checking for prerequisites
1:51:46 PM [main] All prerequisites found
1:51:46 PM [main] Initializing Modules
1:51:46 PM [Apache] Problem detected!
1:51:46 PM [Apache] Port 80 in use by "Unable to open process" with PID 4!
1:51:46 PM [Apache] Apache WILL NOT start without the configured ports free!
1:51:46 PM [Apache] You need to uninstall/disable/reconfigure the blocking application
1:51:46 PM [Apache] or reconfigure Apache and the Control Panel to listen on a different port
1:51:46 PM [mysql] MySQL Service detected with wrong path
1:51:46 PM [mysql] Change XAMPP MySQL and Control Panel settings or
1:51:46 PM [mysql] Uninstall/disable the other service manually first
1:51:46 PM [mysql] Found Path: "E:\xampp\mysql\bin\mysqld.exe" --defaults-file="E:\xampp\mysql\bin\my.ini" MySQL
1:51:46 PM [mysql] Expected Path: c:\xampp\mysql\bin\mysqld.exe --defaults-file=c:\xampp\mysql\bin\my.ini mysql
1:51:46 PM [main] Starting Check-Timer
1:51:46 PM [main] Control Panel Ready
2:18:12 PM [Apache] Problem detected!
2:18:12 PM [Apache] Port 80 in use by "Unable to open process" with PID 4!
2:18:12 PM [Apache] Apache WILL NOT start without the configured ports free!
2:18:12 PM [Apache] You need to uninstall/disable/reconfigure the blocking application
2:18:12 PM [Apache] or reconfigure Apache and the Control Panel to listen on a different port
2:18:12 PM [Apache] Attempting to start Apache app...
2:18:12 PM [Apache] Status change detected: running
2:18:13 PM [Apache] Status change detected: stopped
2:18:13 PM [Apache] Error: Apache shutdown unexpectedly.
2:18:13 PM [Apache] This may be due to a blocked port, missing dependencies,
2:18:13 PM [Apache] improper privileges, a crash, or a shutdown by another method.
2:18:13 PM [Apache] Press the Logs button to view error logs and check
2:18:13 PM [Apache] the Windows Event Viewer for more clues
2:18:13 PM [Apache] If you need more help, copy and post this
2:18:13 PM [Apache] entire log window on the forums

I tried to copy the 'netstat-TCP Listening sockets popup window but it wouldn't paste here? It does note Address: 0.0.0.0, Port: 80, PID: 4, Name: System.

aoutrance wrote:Am not a Windows Tech and really don't want to fool around with changing things without exact instructions which do not seem to be provided in this forum.

What? There is a sticky thread exactly for Apache starting problems at this forum here.
[FGA] solving Port 80 in use by PID 4 (HTTP.sys) issue

Thanks for reply. Can you help with the following that prints in the actions window of XAMPP Control Panel ( lines pertaining to MySQL ) :

2:05:03 AM [main] Initializing Control Panel
2:05:03 AM [main] Windows Version: Windows 7 Professional SP1 64-bit
2:05:03 AM [main] XAMPP Version: 5.6.12
2:05:03 AM [main] Control Panel Version: 3.2.1 [ Compiled: May 7th 2013 ]
2:05:03 AM [main] Running with Administrator rights - good!
2:05:03 AM [main] XAMPP Installation Directory: "c:\xampp\"
2:05:03 AM [main] Checking for prerequisites
2:05:03 AM [main] All prerequisites found
2:05:03 AM [main] Initializing Modules
2:05:03 AM [mysql] MySQL Service detected with wrong path
2:05:03 AM [mysql] Change XAMPP MySQL and Control Panel settings or
2:05:03 AM [mysql] Uninstall/disable the other service manually first
2:05:03 AM [mysql] Found Path: "E:\xampp\mysql\bin\mysqld.exe" --defaults-file="E:\xampp\mysql\bin\my.ini" MySQL
2:05:03 AM [mysql] Expected Path: c:\xampp\mysql\bin\mysqld.exe --defaults-file=c:\xampp\mysql\bin\my.ini mysql
2:05:03 AM [main] Starting Check-Timer
2:05:03 AM [main] Control Panel Ready
2:05:18 AM [Apache] Attempting to start Apache app...
2:05:18 AM [Apache] Status change detected: running

Simply unregister The MySQL service

Apologies for lack of understanding! Unregister = Uninstall in Control Panel? Then reinstall to use it?

aoutrance wrote:Apologies for lack of understanding! Unregister = Uninstall in Control Panel? Then reinstall to use it?

You can unregister it the same way you registered it, so either in the control panel or the command line. Both works.
Before reregistering the service i would try to start the component without service first.