This is related to PostgreSQL.
To fix the problem, open php.ini and change two extensions lines like:
;extension=php_pdo_pgsql.dll
;extension=php_pgsql.dll
Of course not! Not convinced ? You can check the analysis on Virus Total.
Those dll are needed for applications built with Microsoft Visual Studio, like PHP and Apache. This error appears when the proper Microsoft Visual C++ Redistributable is not already installed on your system. The redistributable can easily be downloaded and installed (see below).
The VC14 builds require to have the Visual C++ Redistributable for Visual Studio 2015 x86 or x64 installed
The VC11 builds require to have the Visual C++ Redistributable for Visual Studio 2012 x86 or x64 installed
The VC9 builds require you to have the Visual C++ Redistributable for Visual Studio 2008 SP1 x86 or x64 installed
You just have to delete the folder and the shortcut on your desktop. Nothing more.