I installed the Apache web server on my Windows 7 machine and I'm unable to start it because Skype.exe is already using HTTP port 80 and HTTPS port 443.
I need Apache and Skype to co-exist on the same machine. How do I configure Apache to use other ports, or prevent Skype from listening on these ports?
To turn off and disable Skype usage of and listening on port 80 and port 443, open the Skype window, then click on the Tools menu and select Options. Click on the Advanced tab, and go to the Connection sub-tab. Untick or uncheck the checkbox for Use port 80 and 443 as an alternative for additional incoming connections option. Click on the Save button and then restart Skype to make the change effective.
来源：https://stackoverflow.com/questions/22994888/how-do-i-stop-skype-from-using-http-or-https-ports-80-and-443