I have installed two PHP versions in my WAMP server. When I am using 5.3.10, my wamp server is running just fine. But when I switch to older version of PHP (5.2.9) my wamp s
First go to Wamp->Apache->Service->Test Port 80
If its being user by Microsoft HTTPAPI / 2.0
Then the solution is to manually stop the service named web deployment agent service
If you have Microsoft Sql Server installed, even though the IIS service is disabled, it keeps a web service named httpapi2.0 running.