Hi,
All of the old addons (before Wampserver 2.5) are compiled with VC6 that is not compatible with the recent versions of Apache, PHP and MySQL that are compiled with VC9, VC10 or VC11.
It is possible to add PHP 5.4.28 (or the last PHP 5.4.29) to Wampserver 2.5, but only for 32 bit version because php.net does not compile 64 bit version of PHP 5.4.x (Only from PHP 5.5.x)
I wrote a topo (Sorry, in French) to add Apache 2.2.27 or PHP 5.4.28 to Wampserver 2.5.
Wampserver 2.5 - Ajouter Apache 2.2.27 et/ou PHP 5.4.28 and goto directly to:
*** C *** Installer PHP 5.4.28 32 bit sur Wampserver 2.5
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Documentation Apache -
Documentation PHP -
Documentation MySQL -
Wampserver install files & addons