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is firefox using port 80 on my XP PC?

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I hate being so lame, but I can't use WAMP as installed on my XP machine (I have two Win 7 PCs, but I'm hoping to re-develop a website on the XP machine). Apache 2.2 is installed, as well as an earlier version of WordPress known to work on XP machines. The respective folders these programs are installed in are c:\wamp and c:\wordpress. Apache 2.2 always launches while booting, that's great. When I place my mouse over the Apache HTTP server icon in the tray just to the left of my machine's clock, it displays Running 1 of 2 Apache services. There is a red-light to the left of the wampapache (sub) icon, and when I click on the Start option for it, within seconds I always get this message: The requested option has failed! All I can find via online research for this problem is that I may have port 80 already in use on my computer. HELP! Does anyone have any insight into solving this problem? I bought a copy of the 3rd edition of Professional WordPress Design & Development, and thus far it looks great. But until I can get WAMP running, I'm dead in the water. Thank you!

I hate being so lame, but I can't use WAMP as installed on my XP machine (I have two Win 7 PCs, but I'm hoping to re-develop a website on the XP machine). Apache 2.2 is installed, as well as an earlier version of WordPress known to work on XP machines. The respective folders these programs are installed in are c:\wamp and c:\wordpress. Apache 2.2 always launches while booting, that's great. When I place my mouse over the Apache HTTP server icon in the tray just to the left of my machine's clock, it displays Running 1 of 2 Apache services. There is a red-light to the left of the wampapache (sub) icon, and when I click on the Start option for it, within seconds I always get this message: The requested option has failed! All I can find via online research for this problem is that I may have port 80 already in use on my computer. HELP! Does anyone have any insight into solving this problem? I bought a copy of the 3rd edition of Professional WordPress Design & Development, and thus far it looks great. But until I can get WAMP running, I'm dead in the water. Thank you!

Chosen solution

If Port 80 won't cooperate, could you try changing to port 8080 using the steps in this StackOverflow page: http://stackoverflow.com/questions/8574332/how-to-change-port-number-for-apache-in-wamp

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Firefox normally isn't listening for connections on port 80.

There is a command line utility named netstat that might help you identify what is listening on port 80. It is described in this article: http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/netstat.mspx?mfr=true

So for example you can use Start > Run to run cmd.exe

Then type netstat -a to get a list of active ports.

This list will continue to update every few seconds, so to stop it, press Ctrl+C (this may take a few seconds to process).

Can you track it down that way?

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THANKS for your response. I can't find port 80 here; it IS part of a longer string of numbers, such as 12080, but not as 80 alone. My thinking is that something else is keeping wampache from loading / running, but I can't find any info regarding this problem anywhere else. Having WordPress, Apache, MySQL, and PHP installed together will be <really> helpful to me, once / if I ever have this all running together. In fact, I can't wait for that to happen so I can take advantage of HTML 5, and other developments that have occurred recently. Being able to have a Contact Us page which (instead of supplying an email address) will have a <form> pop up for someone to contact us, will itself be a great improvement. Improved media players(s) and everything else is - at this moment - a dream waiting to come true for me.

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Chosen Solution

If Port 80 won't cooperate, could you try changing to port 8080 using the steps in this StackOverflow page: http://stackoverflow.com/questions/8574332/how-to-change-port-number-for-apache-in-wamp