Thanks for updating your profile as requested by Altrea.
You can't do anything about the system using port 80 except follow the below methods to get rid of what ever the system is that's using port 80.
Make sure that IIS is disabled (the Windows default web server
) aka. World Wide Publishing Service:viewtopic.php?p=175526#p175526viewtopic.php?p=186588#p186588http://forums.iis.net/p/1150139/1872824.aspx
The CP3 beta is only by name as it has been thoroughly tested with an the latest updated version found here:viewtopic.php?p=186862#p186862
Try and remove the Ticks in the service module and answer the question asked. This will not affect your PC in any way and is more than likely the cause of the system entry in the netstat results - make sure you are logged into Vista as an administrator as this is a requirement to run and administer a web server or at least disable the UAC.
If that fails then click on the Win-services button and find Apache2.2.
Click on either Start or Stop depending on what is presented.
Next go back to the CP3 and see if either the tick has gone or Apache is started.
Repeat for mysql.
The reason the ticks are there is when you installed XAMPP you selected to start XAMPP every time Windows starts and is really not needed for the purpose XAMPP was developed for.
If all else fails or you don't feel confident in learning how to do things as a web server administrator then follow these instructions to uninstall this installer exe version and then reinstall using the zip or 7zip version which is much simpler to get up and running:viewtopic.php?p=179699#p179699
The current installer used has been known to be buggy on some systems.
At least one of the above suggestions should have you moving forward - please let us know back which one did it for you.