Description:
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I've installed ImageMagick 6.8.9 on Windows 64x (threaded) with PHP 5.6.2. I also installed the 5.6 Thread Safe (TS) x64 version from http://pecl.php.net/package/imagick/3.1.2/windows. After putting the DLL's in the "right" places and configuring the environment variables some things work and some don't. For example:

- The ImageMagick commands work fine.

- The "convert -list configure" command reports:
Name           Value
-------------------------------------------------------------------------------
CC             vs10
COPYRIGHT      Copyright (C) 1999-2014 ImageMagick Studio LLC
DELEGATES      bzlib freetype jpeg jp2 lcms png tiff x11 xml wmf zlib
FEATURES       OpenMP
HOST           Windows
LIB_VERSION    0x689
LIB_VERSION_NUMBER 6,8,9,10
NAME           ImageMagick
RELEASE_DATE   2014-11-15
VERSION        6.8.9
WEBSITE        http://www.imagemagick.org

- The imdisplay program works fine with all installed formats.

- The $imagine->open function in PHP works fine for a gif file.

- For some other formats, such as JPEG and PNG, the exact same code returns an exception:
Fatal error: Uncaught exception 'ImagickException' with message 'UnableToLoadModule `C:\Program Files\ImageMagick-6.8.9-Q16\modules\coders\IM_MOD_RL_JPEG_.dll



Test script:
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<?php

require 'vendor/autoload.php';

$imagine = new Imagine\Imagick\Imagine();

// same image generated as gif, jpg and png - gif works, jpg and png fail
$image = $imagine->open('xxx.jpg');