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i installed xampp but got apache error after the installation...im new to this server concept....and when i placed my files in xampp folder in c drive which is the root ...and when i use localhost/xampp/file.html it doesnt show up...whats the problem behind it...

ERROR: Port 80 in use by "Unable to open process" with PID 4! 8:21:50 PM [Apache] Apache WILL NOT start without the configured ports free! 8:21:50 PM [Apache] You need to uninstall/disable/reconfigure the blocking application 8:21:50 PM [Apache] or reconfigure Apache and the Control Panel to listen on a different port

user2675040
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  • Hi, welcome to SO! I guess you could format your question a bit better (see http://stackoverflow.com/help/how-to-ask) and in your specific case I guess you have another process listening on port 80 (maybe Skype?). – Paolo Stefan Aug 13 '13 at 15:21
  • i dont have skype installed right now...is there any app that accessing it??? – user2675040 Aug 13 '13 at 15:22
  • maybe utorrent or idm???? – user2675040 Aug 13 '13 at 15:29
  • Please see http://stackoverflow.com/questions/1960750/how-to-find-which-program-is-using-port-80-in-windows (I found it googling "windows applications listening to port 80") – Paolo Stefan Aug 13 '13 at 15:30

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Try using port 8080 rather than 80 if Windows 8 is involved. You will have to find the config file in Xampp

user3389130
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Most likely Skype on windows 8.1 (comes installed), however I read somewhere that other (earlier) installed MS SQL programs prevents Apache from running because of conflicting port numbers. MS Visual Studio (supports pre-installed MS Office?!?) is also using this. This user simply uninstalled the older MS SQL file(s).

Skype is -just like Xampp- using ports 80 and 443 and those port numbers cannot be changed anymore in the newer versions. I opened Skype and re-opend my Xampp control-panel and started both Apache and Msql; both started running and you can see Apache is running with ports 80 and 443. Without closing I opened Skype again and was able to make a connection. With re-opening the Xampp control panel, I could see that Apache was still in the running-mode. I opened my web browser and typed "localhost" and the Xampp screen appeared; php-administration and the phonebook both worked. So I think Skype is automaticly changing its default port numbers. Works for me, hope the same for other users.

user3950788
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