I've been using Wamp 2.0 with below configuration for a long time and it works fine, here's the configuration :-
Apache 2.2.11
PHP 5.2.9
MySQL 5.1.33
and it works like a charm. But lately I was required to use PHP 5.3 so I downloaded the addon PHP 5.3.1 (WampServer2-PHP531.exe) and after installing I got couple of errors whereas PHP 5.3.1 is supported by Apache 2.2.11 as per WAMP.
FYI: When I switch back to PHP 5.2.9 WAMP doesn't do that and shows same first 2-3 errors (screenshots are below) and I have to click again to switch back to PHP 5.2.9 and then it happens. And I also checked all the extensions (which were error messages) were installed by WampServer2-PHP531.exe
I got few screenshots, it will help you to figure out the problem, please let me know how to remove this error :-
All screenshots are in series http://imageshack.us/g/833/77158451.jpg/