During the installation of Apache2 I got the following message into cmd window:
Installing the Apache2.2 service The Apache2.2 service is successful
Windows Vista Home Premium operating system issue: The easiest way to resolve the issue is to change the port number in Apache2\conf\httpd.conf.
Change the port number at the following lines. 'Listen' from 80 to 8888 and 'ServerName' machinename (ex:localhost) from 80 to 8888. Save then close. Open up Apache Service Monitor and restart service or go to Computer Management > Services and locate Apache 2.2 and start or restart.