Apache Install and Ambiguous Errors

I installed Apache 2.2.11 on the Windows XP portion of my desktop workstation for development purposes, but I got a lot of ambiguous errors when starting from the Apache Service Monitor or the Windows start menu.

Finally, when I started Apache from the command line I got a more informative error:
(OS 10048) Only one usage of each socket address (protocal/network address/port) is normally permitted. : make_sock: could not bind to address no listening sockets available, shutting down

It turns out, I had Skype running, which by default binds to ports 5520, 80, and 443. There are several solutions:
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