First of all I have Windows XP Professional.
I download XAMPP and run it normally. I installed the components(Apache, MySQL, etc). When I re-opened it, it said:
Port 80 is already in use by Skype blah blah.
Port 443 is already in use by Skype blah blah.
I tried to stop XAMPP(xampp_stop.exe) but then it said:
Can't find apache\logs\httpd.pid
Can't find mysql\data\mysql.pid
I changed 1 of the port(80) to 81.
Yes, I re-installed it. Also before re-install I think 80 port was not from Skype.
Anyway, I closed Skype already and it worked like charm. xampp_stop.exe don't work tho, I thought after I start apache it might create the files which couldn't find.