Cannot start Apache, but IIS7

Question

I installed IIS7 and Xampp 2.5 on my laptop (Windows 7). However, I cannot start Apache because the port 80 was not available (when I stop IIS7), but I can start IIS7. I don't know why. Anybody give me a hint pls :)

Thank you so much :)

Answer 1

If port 80 is unavailable:

1. Run xampp-portcheck.exe - it will tell you if any other programs are listening on needed ports - and identify the programs for you.
2. Check skype if you use it - it may listen on port 80
3. Try using netstat -nabt and looking for anything listening on port 80

Also, if you are not already doing so, start with a fresh install of XAMPP (i.e. unmodified httpd.conf). You may also consider changing the port Apache listens on (the 'Listen' directive) to see if that resolves the problem.