I installed Wamp server some time ago and everything worked. I used it to develop a small homepage. After finishing the works on the homepage I did not use it about two weeks. Today I encountered that the apache server was not running for reasons unknown. I changed the listening port to 8080 instead of 80 and apache is now running but mysql is not. But it was running before I changed the listening port for apache server. Is there a config-file I forgot to change?