I recently just performed a PHP upgrade from 5.6.15 to 7.0.1. After doing everything I had suspected I needed to do I received this error in my logs when trying to start Apache:
httpd.exe: Syntax error on line 569 of C:/Program Files (x86)/Apache Software Foundation/Apache24/conf/httpd.conf: Cannot load C:/Program Files (x86)/PHP.7.0.1/php7apache2_4.dll into server: The specified module could not be found.
Here is what I had in that block, bolding the item in question:
LoadModule php7_module "C:/Program Files (x86)/PHP.7.0.1/php7apache2_4.dll" AddHandler application/x-httpd-php .php PHPIniDir "C:/Program Files (x86)/PHP.7.0.1/"
Huh??? I checked and double checked and that file was there. After about 2 hours of scratching my head I then found a forum post that clicked for me. You may not be recognizing the .dll file because it has a dependency on the Visual C++ Redistributable for Visual Studio 2015. Once I downloaded and installed the exe files (located here) then after another restart I started seeing my pages again. Hope it helps.