Welcome to the Setup wiki! Download and Setup PHP Download PHP for Windows – Go to http://windows.php.net/download/ and grab a “Thread Safe” version. I used PHP 5.5.31 VC11 x64 Thread Safe (since I needed 5.5 for my project and I am running on a x64 machine) Unzip the contents of the PHP .zip file into C:\Program Files\PHP Create C:\PHP Copy the file C:\Program Files\PHP\ext\php_openssl.dll to C:\PHP Edit the files C:\Program Files\PHP\php.ini-development and C:\Program Files\PHP\php.ini-production in a text editor (like Notepad) and remove the semicolon (;) from line 876 (it should be extension=php_openssl.dll) Make a copy of C:\Program Files\PHP\php.ini-production and call it C:\Program Files\PHP\php.ini Make PHP Available to Windows Right-click on the Start button (bottom left corner) and go to “System” Click on “Advanced system settings” Click on “Environment Variables…” Under “System variables” scroll down and highlight the variable “Path” Click “Edit…” Click “New” Create a new entry “C:\Program Files\PHP” Click “New” Create a new entry “C:\PHP” Click “OK” Under “System variables”, click “New…” For “Variable name” put “OPENSSL_CONF” For “Variable value” put “C:\Program Files\PHP\extras\ssl\openssl.cnf” Install Visual C++ Redistributable for Visual Studio 2012 Update 4 Use this link: https://www.microsoft.com/en-us/download/details.aspx?id=30679# Download a copy of “vcredist_x64.exe” (or “vcredist_x86.exe” if you’re running x86) Run the executable to install the missing .dll files you’ll need for Composer Download and Install Composer Simply go to http://getcomposer.org/download/ and look for the Composer-Setup.exe link Install Composer